80975660 has 12 divisors (see below), whose sum is σ = 170048928. Its totient is φ = 32390256.

The previous prime is 80975633. The next prime is 80975669. The reversal of 80975660 is 6657908.

It is a happy number.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (80975669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2024372 + ... + 2024411.

It is an arithmetic number, because the mean of its divisors is an integer number (14170744).

Almost surely, 2^80975660 is an apocalyptic number.

It is an amenable number.

80975660 is an abundant number, since it is smaller than the sum of its proper divisors (89073268).

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

80975660 is a wasteful number, since it uses less digits than its factorization.

80975660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4048792 (or 4048790 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 41.

The square root of 80975660 is about 8998.6476761789. The cubic root of 80975660 is about 432.6315280412.

The spelling of 80975660 in words is "eighty million, nine hundred seventy-five thousand, six hundred sixty".