80990982 has 32 divisors (see below), whose sum is σ = 180507360. Its totient is φ = 26917920.

The previous prime is 80990971. The next prime is 80990983. The reversal of 80990982 is 28909908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80990983) 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 15 ways as a sum of consecutive naturals, for example, 18132 + ... + 22152.

It is an arithmetic number, because the mean of its divisors is an integer number (5640855).

Almost surely, 2^80990982 is an apocalyptic number.

80990982 is an abundant number, since it is smaller than the sum of its proper divisors (99516378).

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

80990982 is a wasteful number, since it uses less digits than its factorization.

80990982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4405 (or 4399 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 45.

The square root of 80990982 is about 8999.4989860547. The cubic root of 80990982 is about 432.6588134511.

The spelling of 80990982 in words is "eighty million, nine hundred ninety thousand, nine hundred eighty-two".