80317399 has 4 divisors (see below), whose sum is σ = 80668360. Its totient is φ = 79966440.

The previous prime is 80317379. The next prime is 80317411. The reversal of 80317399 is 99371308.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 80317399 - 2⁷ = 80317271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80317309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 175137 + ... + 175594.

It is an arithmetic number, because the mean of its divisors is an integer number (20167090).

Almost surely, 2^80317399 is an apocalyptic number.

80317399 is a deficient number, since it is larger than the sum of its proper divisors (350961).

80317399 is a wasteful number, since it uses less digits than its factorization.

80317399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350960.

The product of its (nonzero) digits is 40824, while the sum is 40.

The square root of 80317399 is about 8961.9974893993. The cubic root of 80317399 is about 431.4560322240.

The spelling of 80317399 in words is "eighty million, three hundred seventeen thousand, three hundred ninety-nine".