title: web3.eth.getBlockNumber returns { [Function: get] request: [Function: bound ] }
body: <p>I am using express and web3, and when I try to get the blockNumber it returns <code>{ [Function: get] request: [Function: bound ] }</code></p>
  
  <p>My code is:</p>
  
  <pre><code>var express = require('express');
  var app = express();
  
  const Web3 = require('web3');
  var web3 = new Web3();
  
  web3.setProvider(new web3.providers.HttpProvider('http://localhost:8545'))
  
  app.get('/', function(req, res) {
  
      let Block =  web3.eth.getBlockNumber
  
      console.log(Block);
      res.send("It is me");
  });
  </code></pre>
  
  <p>But I need the block number. How do I get it?</p>