80640313 has 8 divisors (see below), whose sum is σ = 91414400. Its totient is φ = 70519248.

The previous prime is 80640281. The next prime is 80640337. The reversal of 80640313 is 31304608.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 80640313 - 2⁵ = 80640281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80640383) 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, 162993 + ... + 163486.

It is an arithmetic number, because the mean of its divisors is an integer number (11426800).

Almost surely, 2^80640313 is an apocalyptic number.

It is an amenable number.

80640313 is a deficient number, since it is larger than the sum of its proper divisors (10774087).

80640313 is a wasteful number, since it uses less digits than its factorization.

80640313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326511.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 80640313 is about 8979.9951559007. The cubic root of 80640313 is about 432.0334782726.

The spelling of 80640313 in words is "eighty million, six hundred forty thousand, three hundred thirteen".