87057904 has 20 divisors (see below), whose sum is σ = 168911064. Its totient is φ = 43467968.

The previous prime is 87057899. The next prime is 87057907. The reversal of 87057904 is 40975078.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87057907) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9339 + ... + 16165.

Almost surely, 2^87057904 is an apocalyptic number.

It is an amenable number.

87057904 is a deficient number, since it is larger than the sum of its proper divisors (81853160).

87057904 is a wasteful number, since it uses less digits than its factorization.

87057904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7632 (or 7626 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 40.

The square root of 87057904 is about 9330.4825169977. The cubic root of 87057904 is about 443.2030451119.

The spelling of 87057904 in words is "eighty-seven million, fifty-seven thousand, nine hundred four".