92819681 has 2 divisors, whose sum is σ = 92819682. Its totient is φ = 92819680.

The previous prime is 92819663. The next prime is 92819747. The reversal of 92819681 is 18691829.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 75968656 + 16851025 = 8716^2 + 4105^2 .

It is a cyclic number.

It is not a de Polignac number, because 92819681 - 2¹⁴ = 92803297 is a prime.

It is a super-2 number, since 2×92819681² = 17230986361883522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (92819641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 46409840 + 46409841.

It is an arithmetic number, because the mean of its divisors is an integer number (46409841).

Almost surely, 2^92819681 is an apocalyptic number.

It is an amenable number.

92819681 is a deficient number, since it is larger than the sum of its proper divisors (1).

92819681 is an equidigital number, since it uses as much as digits as its factorization.

92819681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62208, while the sum is 44.

The square root of 92819681 is about 9634.2971201847. The cubic root of 92819681 is about 452.7724818174.

The spelling of 92819681 in words is "ninety-two million, eight hundred nineteen thousand, six hundred eighty-one".