80979575 has 6 divisors (see below), whose sum is σ = 100414704. Its totient is φ = 64783640.

The previous prime is 80979497. The next prime is 80979583. The reversal of 80979575 is 57597908.

It is not a de Polignac number, because 80979575 - 2⁸ = 80979319 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1619567 + ... + 1619616.

It is an arithmetic number, because the mean of its divisors is an integer number (16735784).

Almost surely, 2^80979575 is an apocalyptic number.

80979575 is a deficient number, since it is larger than the sum of its proper divisors (19435129).

80979575 is a wasteful number, since it uses less digits than its factorization.

80979575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3239193 (or 3239188 counting only the distinct ones).

The product of its (nonzero) digits is 793800, while the sum is 50.

The square root of 80979575 is about 8998.8652062357. The cubic root of 80979575 is about 432.6385001986.

The spelling of 80979575 in words is "eighty million, nine hundred seventy-nine thousand, five hundred seventy-five".