79914779 has 16 divisors (see below), whose sum is σ = 97466880. Its totient is φ = 63996480.

The previous prime is 79914763. The next prime is 79914797. The reversal of 79914779 is 97741997.

It is a cyclic number.

It is not a de Polignac number, because 79914779 - 2⁴ = 79914763 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 79914779.

It is not an unprimeable number, because it can be changed into a prime (79914799) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5594 + ... + 13824.

It is an arithmetic number, because the mean of its divisors is an integer number (6091680).

Almost surely, 2^79914779 is an apocalyptic number.

79914779 is a deficient number, since it is larger than the sum of its proper divisors (17552101).

79914779 is a wasteful number, since it uses less digits than its factorization.

79914779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8330.

The product of its digits is 1000188, while the sum is 53.

The square root of 79914779 is about 8939.5066418679. The cubic root of 79914779 is about 430.7338810793.

The spelling of 79914779 in words is "seventy-nine million, nine hundred fourteen thousand, seven hundred seventy-nine".