80485979 has 8 divisors (see below), whose sum is σ = 93861600. Its totient is φ = 68987688.

The previous prime is 80485967. The next prime is 80485997. The reversal of 80485979 is 97958408.

It is not a de Polignac number, because 80485979 - 2⁴ = 80485963 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80484979) 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, 116984 + ... + 117669.

It is an arithmetic number, because the mean of its divisors is an integer number (11732700).

Almost surely, 2^80485979 is an apocalyptic number.

80485979 is a deficient number, since it is larger than the sum of its proper divisors (13375621).

80485979 is an equidigital number, since it uses as much as digits as its factorization.

80485979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234674 (or 234660 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 50.

The square root of 80485979 is about 8971.3978286552. The cubic root of 80485979 is about 431.7576855387.

The spelling of 80485979 in words is "eighty million, four hundred eighty-five thousand, nine hundred seventy-nine".