57447396 has 36 divisors (see below), whose sum is σ = 148759884. Its totient is φ = 18681600.

The previous prime is 57447391. The next prime is 57447407. The reversal of 57447396 is 69374475.

57447396 is a `hidden beast` number, since 574 + 4 + 73 + 9 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 746496 + 56700900 = 864^2 + 7530^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (57447391) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17985 + ... + 20936.

It is an arithmetic number, because the mean of its divisors is an integer number (4132219).

Almost surely, 2^57447396 is an apocalyptic number.

It is an amenable number.

57447396 is an abundant number, since it is smaller than the sum of its proper divisors (91312488).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57447396 is a wasteful number, since it uses less digits than its factorization.

57447396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38972 (or 38967 counting only the distinct ones).

The product of its digits is 635040, while the sum is 45.

The square root of 57447396 is about 7579.4060453310. The cubic root of 57447396 is about 385.8543930752.

The spelling of 57447396 in words is "fifty-seven million, four hundred forty-seven thousand, three hundred ninety-six".