93057989 has 2 divisors, whose sum is σ = 93057990. Its totient is φ = 93057988.

The previous prime is 93057961. The next prime is 93058019. The reversal of 93057989 is 98975039.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 88924900 + 4133089 = 9430^2 + 2033^2 .

It is an emirp because it is prime and its reverse (98975039) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 93057989 - 2⁸ = 93057733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (93057919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 46528994 + 46528995.

It is an arithmetic number, because the mean of its divisors is an integer number (46528995).

Almost surely, 2^93057989 is an apocalyptic number.

It is an amenable number.

93057989 is a deficient number, since it is larger than the sum of its proper divisors (1).

93057989 is an equidigital number, since it uses as much as digits as its factorization.

93057989 is an evil number, because the sum of its binary digits is even.

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

The square root of 93057989 is about 9646.6568820499. The cubic root of 93057989 is about 453.1596378373.

The spelling of 93057989 in words is "ninety-three million, fifty-seven thousand, nine hundred eighty-nine".