80899944 has 16 divisors (see below), whose sum is σ = 202249920. Its totient is φ = 26966640.

The previous prime is 80899939. The next prime is 80899963. The reversal of 80899944 is 44999808.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1685392 + ... + 1685439.

It is an arithmetic number, because the mean of its divisors is an integer number (12640620).

Almost surely, 2^80899944 is an apocalyptic number.

It is an amenable number.

80899944 is an abundant number, since it is smaller than the sum of its proper divisors (121349976).

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

80899944 is a wasteful number, since it uses less digits than its factorization.

80899944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3370840 (or 3370836 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 51.

The square root of 80899944 is about 8994.4396156737. The cubic root of 80899944 is about 432.4966424723.

The spelling of 80899944 in words is "eighty million, eight hundred ninety-nine thousand, nine hundred forty-four".