57396487 has 4 divisors (see below), whose sum is σ = 57430360. Its totient is φ = 57362616.

The previous prime is 57396467. The next prime is 57396491. The reversal of 57396487 is 78469375.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 57396487 - 2¹¹ = 57394439 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 57396487.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57396467) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14253 + ... + 17830.

It is an arithmetic number, because the mean of its divisors is an integer number (14357590).

Almost surely, 2^57396487 is an apocalyptic number.

57396487 is a deficient number, since it is larger than the sum of its proper divisors (33873).

57396487 is a wasteful number, since it uses less digits than its factorization.

57396487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33872.

The product of its digits is 1270080, while the sum is 49.

The square root of 57396487 is about 7576.0469243531. The cubic root of 57396487 is about 385.7403799774.

The spelling of 57396487 in words is "fifty-seven million, three hundred ninety-six thousand, four hundred eighty-seven".