80444979 has 6 divisors (see below), whose sum is σ = 116198316. Its totient is φ = 53629980.

The previous prime is 80444971. The next prime is 80444981. The reversal of 80444979 is 97944408.

It is not a de Polignac number, because 80444979 - 2³ = 80444971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80444971) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4469157 + ... + 4469174.

It is an arithmetic number, because the mean of its divisors is an integer number (19366386).

Almost surely, 2^80444979 is an apocalyptic number.

80444979 is a deficient number, since it is larger than the sum of its proper divisors (35753337).

80444979 is a wasteful number, since it uses less digits than its factorization.

80444979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8938337 (or 8938334 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 80444979 is about 8969.1124979008. The cubic root of 80444979 is about 431.6843598405.

The spelling of 80444979 in words is "eighty million, four hundred forty-four thousand, nine hundred seventy-nine".