80992158 has 24 divisors (see below), whose sum is σ = 174616008. Its totient is φ = 24896208.

The previous prime is 80992151. The next prime is 80992159. The reversal of 80992158 is 85129908.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80992151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 78973 + ... + 79991.

It is an arithmetic number, because the mean of its divisors is an integer number (7275667).

Almost surely, 2^80992158 is an apocalyptic number.

80992158 is an abundant number, since it is smaller than the sum of its proper divisors (93623850).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80992158 is a wasteful number, since it uses less digits than its factorization.

80992158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2056 (or 1037 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 42.

The square root of 80992158 is about 8999.5643227881. The cubic root of 80992158 is about 432.6609075291.

The spelling of 80992158 in words is "eighty million, nine hundred ninety-two thousand, one hundred fifty-eight".