80899874 has 12 divisors (see below), whose sum is σ = 133384902. Its totient is φ = 36772560.

The previous prime is 80899873. The next prime is 80899877. The reversal of 80899874 is 47899808.

It can be written as a sum of positive squares in only one way, i.e., 67158025 + 13741849 = 8195^2 + 3707^2 .

It is a super-2 number, since 2×80899874² = 13089579226431752, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (80899873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 166907 + ... + 167390.

Almost surely, 2^80899874 is an apocalyptic number.

80899874 is a deficient number, since it is larger than the sum of its proper divisors (52485028).

80899874 is a wasteful number, since it uses less digits than its factorization.

80899874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334321 (or 334310 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 53.

The square root of 80899874 is about 8994.4357243798. The cubic root of 80899874 is about 432.4965177307.

The spelling of 80899874 in words is "eighty million, eight hundred ninety-nine thousand, eight hundred seventy-four".