80915379 has 8 divisors (see below), whose sum is σ = 110396352. Its totient is φ = 52689000.

The previous prime is 80915347. The next prime is 80915389. The reversal of 80915379 is 97351908.

It is a happy number.

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

It is not a de Polignac number, because 80915379 - 2⁵ = 80915347 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 80915379.

It is not an unprimeable number, because it can be changed into a prime (80915309) 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, 313497 + ... + 313754.

It is an arithmetic number, because the mean of its divisors is an integer number (13799544).

Almost surely, 2^80915379 is an apocalyptic number.

80915379 is a deficient number, since it is larger than the sum of its proper divisors (29480973).

80915379 is a wasteful number, since it uses less digits than its factorization.

80915379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 627297.

The product of its (nonzero) digits is 68040, while the sum is 42.

The square root of 80915379 is about 8995.2976048600. The cubic root of 80915379 is about 432.5241462457.

The spelling of 80915379 in words is "eighty million, nine hundred fifteen thousand, three hundred seventy-nine".