57968391 has 16 divisors (see below), whose sum is σ = 83472480. Its totient is φ = 35571840.

The previous prime is 57968389. The next prime is 57968413. The reversal of 57968391 is 19386975.

57968391 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 57968391 - 2¹ = 57968389 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 57968391.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57968311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13261 + ... + 17081.

It is an arithmetic number, because the mean of its divisors is an integer number (5217030).

Almost surely, 2^57968391 is an apocalyptic number.

57968391 is a deficient number, since it is larger than the sum of its proper divisors (25504089).

57968391 is a wasteful number, since it uses less digits than its factorization.

57968391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4226.

The product of its digits is 408240, while the sum is 48.

The square root of 57968391 is about 7613.6975905272. The cubic root of 57968391 is about 387.0173325838.

The spelling of 57968391 in words is "fifty-seven million, nine hundred sixty-eight thousand, three hundred ninety-one".