57998999 has 2 divisors, whose sum is σ = 57999000. Its totient is φ = 57998998.

The previous prime is 57998981. The next prime is 57999061. The reversal of 57998999 is 99989975.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 57998999 - 2¹² = 57994903 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57998929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28999499 + 28999500.

It is an arithmetic number, because the mean of its divisors is an integer number (28999500).

Almost surely, 2^57998999 is an apocalyptic number.

57998999 is a deficient number, since it is larger than the sum of its proper divisors (1).

57998999 is an equidigital number, since it uses as much as digits as its factorization.

57998999 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16533720, while the sum is 65.

The square root of 57998999 is about 7615.7073867107. The cubic root of 57998999 is about 387.0854371836.

The spelling of 57998999 in words is "fifty-seven million, nine hundred ninety-eight thousand, nine hundred ninety-nine".