4047864 has 32 divisors (see below), whose sum is σ = 10177920. Its totient is φ = 1341536.

The previous prime is 4047847. The next prime is 4047929. The reversal of 4047864 is 4687404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5077 + ... + 5819.

It is an arithmetic number, because the mean of its divisors is an integer number (318060).

Almost surely, 2^4047864 is an apocalyptic number.

It is an amenable number.

4047864 is an abundant number, since it is smaller than the sum of its proper divisors (6130056).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4047864 is a wasteful number, since it uses less digits than its factorization.

4047864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 979 (or 975 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 33.

The square root of 4047864 is about 2011.9304162918. The cubic root of 4047864 is about 159.3707577494.

The spelling of 4047864 in words is "four million, forty-seven thousand, eight hundred sixty-four".