57417987 has 16 divisors (see below), whose sum is σ = 83744640. Its totient is φ = 34704000.

The previous prime is 57417967. The next prime is 57417991. The reversal of 57417987 is 78971475.

It is not a de Polignac number, because 57417987 - 2⁶ = 57417923 is a prime.

It is a super-2 number, since 2×57417987² = 6593650462264338, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (57417947) 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, 11064 + ... + 15402.

It is an arithmetic number, because the mean of its divisors is an integer number (5234040).

Almost surely, 2^57417987 is an apocalyptic number.

57417987 is a deficient number, since it is larger than the sum of its proper divisors (26326653).

57417987 is a wasteful number, since it uses less digits than its factorization.

57417987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4754.

The product of its digits is 493920, while the sum is 48.

The square root of 57417987 is about 7577.4657373029. The cubic root of 57417987 is about 385.7885384582.

The spelling of 57417987 in words is "fifty-seven million, four hundred seventeen thousand, nine hundred eighty-seven".