57093987 has 16 divisors (see below), whose sum is σ = 78164640. Its totient is φ = 37056000.

The previous prime is 57093977. The next prime is 57093989. The reversal of 57093987 is 78939075.

It is not a de Polignac number, because 57093987 - 2⁸ = 57093731 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57093989) 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, 16939 + ... + 20027.

It is an arithmetic number, because the mean of its divisors is an integer number (4885290).

Almost surely, 2^57093987 is an apocalyptic number.

57093987 is a deficient number, since it is larger than the sum of its proper divisors (21070653).

57093987 is a wasteful number, since it uses less digits than its factorization.

57093987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3254.

The product of its (nonzero) digits is 476280, while the sum is 48.

The square root of 57093987 is about 7556.0563126541. The cubic root of 57093987 is about 385.0615227482.

The spelling of 57093987 in words is "fifty-seven million, ninety-three thousand, nine hundred eighty-seven".