80729104 has 20 divisors (see below), whose sum is σ = 158749264. Its totient is φ = 39761568.

The previous prime is 80729093. The next prime is 80729111. The reversal of 80729104 is 40192708.

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, 36582 + ... + 38725.

Almost surely, 2^80729104 is an apocalyptic number.

It is an amenable number.

80729104 is a deficient number, since it is larger than the sum of its proper divisors (78020160).

80729104 is a wasteful number, since it uses less digits than its factorization.

80729104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75382 (or 75376 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 80729104 is about 8984.9376180361. The cubic root of 80729104 is about 432.1919871392.

The spelling of 80729104 in words is "eighty million, seven hundred twenty-nine thousand, one hundred four".