80897980 has 24 divisors (see below), whose sum is σ = 170441712. Its totient is φ = 32253312.

The previous prime is 80897977. The next prime is 80897989. The reversal of 80897980 is 8979808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80897989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 202 + ... + 12721.

It is an arithmetic number, because the mean of its divisors is an integer number (7101738).

Almost surely, 2^80897980 is an apocalyptic number.

It is an amenable number.

80897980 is an abundant number, since it is smaller than the sum of its proper divisors (89543732).

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

80897980 is a wasteful number, since it uses less digits than its factorization.

80897980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13245 (or 13243 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 49.

The square root of 80897980 is about 8994.3304364472. The cubic root of 80897980 is about 432.4931425511.

The spelling of 80897980 in words is "eighty million, eight hundred ninety-seven thousand, nine hundred eighty".