57370987 has 16 divisors (see below), whose sum is σ = 61186048. Its totient is φ = 53706240.

The previous prime is 57370981. The next prime is 57370997. The reversal of 57370987 is 78907375.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 57370987 - 2²³ = 48982379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57370981) 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, 257158 + ... + 257380.

It is an arithmetic number, because the mean of its divisors is an integer number (3824128).

Almost surely, 2^57370987 is an apocalyptic number.

57370987 is a deficient number, since it is larger than the sum of its proper divisors (3815061).

57370987 is a wasteful number, since it uses less digits than its factorization.

57370987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490.

The product of its (nonzero) digits is 370440, while the sum is 46.

The square root of 57370987 is about 7574.3638016668. The cubic root of 57370987 is about 385.6832461860.

The spelling of 57370987 in words is "fifty-seven million, three hundred seventy thousand, nine hundred eighty-seven".