92810881 has 2 divisors, whose sum is σ = 92810882. Its totient is φ = 92810880.

The previous prime is 92810863. The next prime is 92810909. The reversal of 92810881 is 18801829.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67650625 + 25160256 = 8225^2 + 5016^2 .

It is a cyclic number.

It is not a de Polignac number, because 92810881 - 2⁹ = 92810369 is a prime.

It is a super-2 number, since 2×92810881² = 17227719263992322, 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 92810881.

It is not a weakly prime, because it can be changed into another prime (92810831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 46405440 + 46405441.

It is an arithmetic number, because the mean of its divisors is an integer number (46405441).

Almost surely, 2^92810881 is an apocalyptic number.

It is an amenable number.

92810881 is a deficient number, since it is larger than the sum of its proper divisors (1).

92810881 is an equidigital number, since it uses as much as digits as its factorization.

92810881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9216, while the sum is 37.

The square root of 92810881 is about 9633.8404076464. The cubic root of 92810881 is about 452.7581726259.

The spelling of 92810881 in words is "ninety-two million, eight hundred ten thousand, eight hundred eighty-one".