57997071 has 24 divisors (see below), whose sum is σ = 94545360. Its totient is φ = 33936000.

The previous prime is 57997061. The next prime is 57997073. The reversal of 57997071 is 17079975.

57997071 is a `hidden beast` number, since 579 + 9 + 7 + 0 + 71 = 666.

It is not a de Polignac number, because 57997071 - 2¹⁴ = 57980687 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57997073) 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 23 ways as a sum of consecutive naturals, for example, 7230 + ... + 12971.

It is an arithmetic number, because the mean of its divisors is an integer number (3939390).

Almost surely, 2^57997071 is an apocalyptic number.

57997071 is a deficient number, since it is larger than the sum of its proper divisors (36548289).

57997071 is a wasteful number, since it uses less digits than its factorization.

57997071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20247 (or 20244 counting only the distinct ones).

The product of its (nonzero) digits is 138915, while the sum is 45.

The square root of 57997071 is about 7615.5808051652. The cubic root of 57997071 is about 387.0811479774.

The spelling of 57997071 in words is "fifty-seven million, nine hundred ninety-seven thousand, seventy-one".