57972447 has 12 divisors (see below), whose sum is σ = 90179544. Its totient is φ = 35675280.

The previous prime is 57972437. The next prime is 57972457. The reversal of 57972447 is 74427975.

57972447 is a `hidden beast` number, since 579 + 72 + 4 + 4 + 7 = 666.

It is an interprime number because it is at equal distance from previous prime (57972437) and next prime (57972457).

It is not a de Polignac number, because 57972447 - 2²² = 53778143 is a prime.

It is a super-2 number, since 2×57972447² = 6721609222335618, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57972437) 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, 247629 + ... + 247862.

It is an arithmetic number, because the mean of its divisors is an integer number (7514962).

Almost surely, 2^57972447 is an apocalyptic number.

57972447 is a deficient number, since it is larger than the sum of its proper divisors (32207097).

57972447 is a wasteful number, since it uses less digits than its factorization.

57972447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495510 (or 495507 counting only the distinct ones).

The product of its digits is 493920, while the sum is 45.

The square root of 57972447 is about 7613.9639479052. The cubic root of 57972447 is about 387.0263588000.

The spelling of 57972447 in words is "fifty-seven million, nine hundred seventy-two thousand, four hundred forty-seven".