80076979 has 4 divisors (see below), whose sum is σ = 80100000. Its totient is φ = 80053960.

The previous prime is 80076967. The next prime is 80077009. The reversal of 80076979 is 97967008.

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

It is a cyclic number.

It is not a de Polignac number, because 80076979 - 2⁵ = 80076947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80076079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5104 + ... + 13645.

It is an arithmetic number, because the mean of its divisors is an integer number (20025000).

Almost surely, 2^80076979 is an apocalyptic number.

80076979 is a deficient number, since it is larger than the sum of its proper divisors (23021).

80076979 is a wasteful number, since it uses less digits than its factorization.

80076979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23020.

The product of its (nonzero) digits is 190512, while the sum is 46.

The square root of 80076979 is about 8948.5741322291. The cubic root of 80076979 is about 431.0250988913.

The spelling of 80076979 in words is "eighty million, seventy-six thousand, nine hundred seventy-nine".