4020747 has 16 divisors (see below), whose sum is σ = 5564832. Its totient is φ = 2580480.

The previous prime is 4020733. The next prime is 4020749. The reversal of 4020747 is 7470204.

It is not a de Polignac number, because 4020747 - 2¹¹ = 4018699 is a prime.

4020747 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4020749) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11763 + ... + 12099.

It is an arithmetic number, because the mean of its divisors is an integer number (347802).

Almost surely, 2^4020747 is an apocalyptic number.

4020747 is a deficient number, since it is larger than the sum of its proper divisors (1544085).

4020747 is a wasteful number, since it uses less digits than its factorization.

4020747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478.

The product of its (nonzero) digits is 1568, while the sum is 24.

The square root of 4020747 is about 2005.1800417918. The cubic root of 4020747 is about 159.0140804745.

The spelling of 4020747 in words is "four million, twenty thousand, seven hundred forty-seven".