57474387 has 12 divisors (see below), whose sum is σ = 85205640. Its totient is φ = 38289996.

The previous prime is 57474379. The next prime is 57474397. The reversal of 57474387 is 78347475.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

57474387 is a `hidden beast` number, since 574 + 74 + 3 + 8 + 7 = 666.

It is not a de Polignac number, because 57474387 - 2³ = 57474379 is a prime.

It is a super-2 number, since 2×57474387² = 6606610322051538, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (57474337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38664 + ... + 40122.

It is an arithmetic number, because the mean of its divisors is an integer number (7100470).

Almost surely, 2^57474387 is an apocalyptic number.

57474387 is a deficient number, since it is larger than the sum of its proper divisors (27731253).

57474387 is an frugal number, since it uses more digits than its factorization.

57474387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2927 (or 1462 counting only the distinct ones).

The product of its digits is 658560, while the sum is 45.

The square root of 57474387 is about 7581.1863847290. The cubic root of 57474387 is about 385.9148133670.

The spelling of 57474387 in words is "fifty-seven million, four hundred seventy-four thousand, three hundred eighty-seven".