57699491 has 2 divisors, whose sum is σ = 57699492. Its totient is φ = 57699490.

The previous prime is 57699487. The next prime is 57699511. The reversal of 57699491 is 19499675.

57699491 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 57699491 - 2² = 57699487 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (57699451) 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 as a sum of consecutive naturals, namely, 28849745 + 28849746.

It is an arithmetic number, because the mean of its divisors is an integer number (28849746).

Almost surely, 2^57699491 is an apocalyptic number.

57699491 is a deficient number, since it is larger than the sum of its proper divisors (1).

57699491 is an equidigital number, since it uses as much as digits as its factorization.

57699491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 612360, while the sum is 50.

The square root of 57699491 is about 7596.0181016109. The cubic root of 57699491 is about 386.4179812763.

The spelling of 57699491 in words is "fifty-seven million, six hundred ninety-nine thousand, four hundred ninety-one".