57381679 has 4 divisors (see below), whose sum is σ = 57471840. Its totient is φ = 57291520.

The previous prime is 57381671. The next prime is 57381707. The reversal of 57381679 is 97618375.

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 57381679 - 2³ = 57381671 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57381671) 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, 44119 + ... + 45400.

It is an arithmetic number, because the mean of its divisors is an integer number (14367960).

Almost surely, 2^57381679 is an apocalyptic number.

57381679 is a deficient number, since it is larger than the sum of its proper divisors (90161).

57381679 is an equidigital number, since it uses as much as digits as its factorization.

57381679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90160.

The product of its digits is 317520, while the sum is 46.

The square root of 57381679 is about 7575.0695706376. The cubic root of 57381679 is about 385.7072041093.

The spelling of 57381679 in words is "fifty-seven million, three hundred eighty-one thousand, six hundred seventy-nine".