79628879 has 8 divisors (see below), whose sum is σ = 86959872. Its totient is φ = 72313240.

The previous prime is 79628869. The next prime is 79628881. The reversal of 79628879 is 97882697.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79628879 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 (79628839) 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, 8852 + ... + 15414.

It is an arithmetic number, because the mean of its divisors is an integer number (10869984).

Almost surely, 2^79628879 is an apocalyptic number.

79628879 is a deficient number, since it is larger than the sum of its proper divisors (7330993).

79628879 is a wasteful number, since it uses less digits than its factorization.

79628879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7677.

The product of its digits is 3048192, while the sum is 56.

The square root of 79628879 is about 8923.5014988512. The cubic root of 79628879 is about 430.2196083928.

The spelling of 79628879 in words is "seventy-nine million, six hundred twenty-eight thousand, eight hundred seventy-nine".