92990857 has 2 divisors, whose sum is σ = 92990858. Its totient is φ = 92990856.

The previous prime is 92990851. The next prime is 92990873. The reversal of 92990857 is 75809929.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55890576 + 37100281 = 7476^2 + 6091^2 .

It is a cyclic number.

It is not a de Polignac number, because 92990857 - 2²³ = 84602249 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 92990857.

It is not a weakly prime, because it can be changed into another prime (92990851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 46495428 + 46495429.

It is an arithmetic number, because the mean of its divisors is an integer number (46495429).

Almost surely, 2^92990857 is an apocalyptic number.

It is an amenable number.

92990857 is a deficient number, since it is larger than the sum of its proper divisors (1).

92990857 is an equidigital number, since it uses as much as digits as its factorization.

92990857 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 408240, while the sum is 49.

The square root of 92990857 is about 9643.1767068741. The cubic root of 92990857 is about 453.0506418896.

The spelling of 92990857 in words is "ninety-two million, nine hundred ninety thousand, eight hundred fifty-seven".