80976359 has 4 divisors (see below), whose sum is σ = 81170040. Its totient is φ = 80782680.

The previous prime is 80976349. The next prime is 80976391. The reversal of 80976359 is 95367908.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80976359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80976319) 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, 96212 + ... + 97049.

It is an arithmetic number, because the mean of its divisors is an integer number (20292510).

Almost surely, 2^80976359 is an apocalyptic number.

80976359 is a deficient number, since it is larger than the sum of its proper divisors (193681).

80976359 is a wasteful number, since it uses less digits than its factorization.

80976359 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193680.

The product of its (nonzero) digits is 408240, while the sum is 47.

The square root of 80976359 is about 8998.6865152643. The cubic root of 80976359 is about 432.6327728950.

The spelling of 80976359 in words is "eighty million, nine hundred seventy-six thousand, three hundred fifty-nine".