57874721 has 2 divisors, whose sum is σ = 57874722. Its totient is φ = 57874720.

The previous prime is 57874669. The next prime is 57874769. The reversal of 57874721 is 12747875.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40768225 + 17106496 = 6385^2 + 4136^2 .

It is a cyclic number.

It is not a de Polignac number, because 57874721 - 2¹⁴ = 57858337 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (57879721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28937360 + 28937361.

It is an arithmetic number, because the mean of its divisors is an integer number (28937361).

Almost surely, 2^57874721 is an apocalyptic number.

It is an amenable number.

57874721 is a deficient number, since it is larger than the sum of its proper divisors (1).

57874721 is an equidigital number, since it uses as much as digits as its factorization.

57874721 is an evil number, because the sum of its binary digits is even.

The product of its digits is 109760, while the sum is 41.

The square root of 57874721 is about 7607.5436903116. The cubic root of 57874721 is about 386.8087622651.

The spelling of 57874721 in words is "fifty-seven million, eight hundred seventy-four thousand, seven hundred twenty-one".