80679880 has 16 divisors (see below), whose sum is σ = 181529820. Its totient is φ = 32271936.

The previous prime is 80679787. The next prime is 80679899. The reversal of 80679880 is 8897608.

It can be written as a sum of positive squares in 2 ways, for example, as 75724804 + 4955076 = 8702^2 + 2226^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 80679880.

It is an unprimeable number.

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, 1008459 + ... + 1008538.

Almost surely, 2^80679880 is an apocalyptic number.

It is an amenable number.

80679880 is an abundant number, since it is smaller than the sum of its proper divisors (100849940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80679880 is a wasteful number, since it uses less digits than its factorization.

80679880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2017008 (or 2017004 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 46.

The square root of 80679880 is about 8982.1979492772. The cubic root of 80679880 is about 432.1041272773.

The spelling of 80679880 in words is "eighty million, six hundred seventy-nine thousand, eight hundred eighty".