80681928 has 16 divisors (see below), whose sum is σ = 201704880. Its totient is φ = 26893968.

The previous prime is 80681897. The next prime is 80681987. The reversal of 80681928 is 82918608.

It is a self number, because there is not a number n which added to its sum of digits gives 80681928.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1680850 + ... + 1680897.

It is an arithmetic number, because the mean of its divisors is an integer number (12606555).

Almost surely, 2^80681928 is an apocalyptic number.

It is an amenable number.

80681928 is an abundant number, since it is smaller than the sum of its proper divisors (121022952).

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

80681928 is a wasteful number, since it uses less digits than its factorization.

80681928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3361756 (or 3361752 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 42.

The square root of 80681928 is about 8982.3119518307. The cubic root of 80681928 is about 432.1077834626.

The spelling of 80681928 in words is "eighty million, six hundred eighty-one thousand, nine hundred twenty-eight".