80319917 has 8 divisors (see below), whose sum is σ = 85430016. Its totient is φ = 75252672.

The previous prime is 80319913. The next prime is 80319923. The reversal of 80319917 is 71991308.

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 80319917 - 2² = 80319913 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 (80319913) 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, 6803 + ... + 14384.

It is an arithmetic number, because the mean of its divisors is an integer number (10678752).

Almost surely, 2^80319917 is an apocalyptic number.

It is an amenable number.

80319917 is a deficient number, since it is larger than the sum of its proper divisors (5110099).

80319917 is a wasteful number, since it uses less digits than its factorization.

80319917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21427.

The product of its (nonzero) digits is 13608, while the sum is 38.

The square root of 80319917 is about 8962.1379703729. The cubic root of 80319917 is about 431.4605409812.

The spelling of 80319917 in words is "eighty million, three hundred nineteen thousand, nine hundred seventeen".