80923979 has 8 divisors (see below), whose sum is σ = 82948272. Its totient is φ = 78906240.

The previous prime is 80923967. The next prime is 80924009. The reversal of 80923979 is 97932908.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80923979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80923379) 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, 31487 + ... + 33959.

It is an arithmetic number, because the mean of its divisors is an integer number (10368534).

Almost surely, 2^80923979 is an apocalyptic number.

80923979 is a deficient number, since it is larger than the sum of its proper divisors (2024293).

80923979 is a wasteful number, since it uses less digits than its factorization.

80923979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3277.

The product of its (nonzero) digits is 244944, while the sum is 47.

The square root of 80923979 is about 8995.7756197006. The cubic root of 80923979 is about 432.5394691502.

The spelling of 80923979 in words is "eighty million, nine hundred twenty-three thousand, nine hundred seventy-nine".