80315990 has 24 divisors (see below), whose sum is σ = 153578592. Its totient is φ = 30235520.

The previous prime is 80315971. The next prime is 80316013. The reversal of 80315990 is 9951308.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 80315990.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11006 + ... + 16785.

It is an arithmetic number, because the mean of its divisors is an integer number (6399108).

Almost surely, 2^80315990 is an apocalyptic number.

80315990 is a deficient number, since it is larger than the sum of its proper divisors (73262602).

80315990 is a wasteful number, since it uses less digits than its factorization.

80315990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27832 (or 27815 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 35.

The square root of 80315990 is about 8961.9188793472. The cubic root of 80315990 is about 431.4535092128.

The spelling of 80315990 in words is "eighty million, three hundred fifteen thousand, nine hundred ninety".