57727397 has 8 divisors (see below), whose sum is σ = 71049216. Its totient is φ = 45674352.

The previous prime is 57727379. The next prime is 57727409. The reversal of 57727397 is 79372775.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 57727397 - 2⁶ = 57727333 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57727357) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 317093 + ... + 317274.

It is an arithmetic number, because the mean of its divisors is an integer number (8881152).

Almost surely, 2^57727397 is an apocalyptic number.

It is an amenable number.

57727397 is a deficient number, since it is larger than the sum of its proper divisors (13321819).

57727397 is a wasteful number, since it uses less digits than its factorization.

57727397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634387.

The product of its digits is 648270, while the sum is 47.

The square root of 57727397 is about 7597.8547630236. The cubic root of 57727397 is about 386.4802674538.

The spelling of 57727397 in words is "fifty-seven million, seven hundred twenty-seven thousand, three hundred ninety-seven".