80316879 has 4 divisors (see below), whose sum is σ = 107089176. Its totient is φ = 53544584.

The previous prime is 80316871. The next prime is 80316881. The reversal of 80316879 is 97861308.

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 80316879 - 2³ = 80316871 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 80316879.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80316871) 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, 13386144 + ... + 13386149.

It is an arithmetic number, because the mean of its divisors is an integer number (26772294).

Almost surely, 2^80316879 is an apocalyptic number.

80316879 is a deficient number, since it is larger than the sum of its proper divisors (26772297).

80316879 is a wasteful number, since it uses less digits than its factorization.

80316879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26772296.

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 80316879 is about 8961.9684779629. The cubic root of 80316879 is about 431.4551010949.

The spelling of 80316879 in words is "eighty million, three hundred sixteen thousand, eight hundred seventy-nine".