57483987 has 32 divisors (see below), whose sum is σ = 93208320. Its totient is φ = 31057920.

The previous prime is 57483983. The next prime is 57484001. The reversal of 57483987 is 78938475.

It is not a de Polignac number, because 57483987 - 2² = 57483983 is a prime.

It is a super-2 number, since 2×57483987² = 6608817522832338, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (57483983) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7963 + ... + 13355.

It is an arithmetic number, because the mean of its divisors is an integer number (2912760).

Almost surely, 2^57483987 is an apocalyptic number.

57483987 is a gapful number since it is divisible by the number (57) formed by its first and last digit.

57483987 is a deficient number, since it is larger than the sum of its proper divisors (35724333).

57483987 is a wasteful number, since it uses less digits than its factorization.

57483987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5443.

The product of its digits is 1693440, while the sum is 51.

The square root of 57483987 is about 7581.8195045780. The cubic root of 57483987 is about 385.9362987402.

The spelling of 57483987 in words is "fifty-seven million, four hundred eighty-three thousand, nine hundred eighty-seven".