57798919 has 2 divisors, whose sum is σ = 57798920. Its totient is φ = 57798918.

The previous prime is 57798901. The next prime is 57798941. The reversal of 57798919 is 91989775.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 57798919 - 2⁷ = 57798791 is a prime.

It is a super-2 number, since 2×57798919² = 6681430075137122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 57798919.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57798619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28899459 + 28899460.

It is an arithmetic number, because the mean of its divisors is an integer number (28899460).

Almost surely, 2^57798919 is an apocalyptic number.

57798919 is a deficient number, since it is larger than the sum of its proper divisors (1).

57798919 is an equidigital number, since it uses as much as digits as its factorization.

57798919 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1428840, while the sum is 55.

The square root of 57798919 is about 7602.5600293585. The cubic root of 57798919 is about 386.6398129224.

The spelling of 57798919 in words is "fifty-seven million, seven hundred ninety-eight thousand, nine hundred nineteen".