57669973 has 2 divisors, whose sum is σ = 57669974. Its totient is φ = 57669972.

The previous prime is 57669961. The next prime is 57670021. The reversal of 57669973 is 37996675.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54508689 + 3161284 = 7383^2 + 1778^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57669973 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 57669973.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57669173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28834986 + 28834987.

It is an arithmetic number, because the mean of its divisors is an integer number (28834987).

Almost surely, 2^57669973 is an apocalyptic number.

It is an amenable number.

57669973 is a deficient number, since it is larger than the sum of its proper divisors (1).

57669973 is an equidigital number, since it uses as much as digits as its factorization.

57669973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2143260, while the sum is 52.

The square root of 57669973 is about 7594.0748613640. The cubic root of 57669973 is about 386.3520752552.

The spelling of 57669973 in words is "fifty-seven million, six hundred sixty-nine thousand, nine hundred seventy-three".