57788993 has 2 divisors, whose sum is σ = 57788994. Its totient is φ = 57788992.

The previous prime is 57788989. The next prime is 57789007. The reversal of 57788993 is 39988775.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41692849 + 16096144 = 6457^2 + 4012^2 .

It is a cyclic number.

It is not a de Polignac number, because 57788993 - 2² = 57788989 is a prime.

It is not a weakly prime, because it can be changed into another prime (57788923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28894496 + 28894497.

It is an arithmetic number, because the mean of its divisors is an integer number (28894497).

Almost surely, 2^57788993 is an apocalyptic number.

It is an amenable number.

57788993 is a deficient number, since it is larger than the sum of its proper divisors (1).

57788993 is an equidigital number, since it uses as much as digits as its factorization.

57788993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3810240, while the sum is 56.

The square root of 57788993 is about 7601.9071949084. The cubic root of 57788993 is about 386.6176786762.

The spelling of 57788993 in words is "fifty-seven million, seven hundred eighty-eight thousand, nine hundred ninety-three".