79196815 has 4 divisors (see below), whose sum is σ = 95036184. Its totient is φ = 63357448.

The previous prime is 79196809. The next prime is 79196839. The reversal of 79196815 is 51869197.

It is a happy number.

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 79196815 - 2⁵ = 79196783 is a prime.

It is a super-2 number, since 2×79196815² = 12544271012288450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7919677 + ... + 7919686.

It is an arithmetic number, because the mean of its divisors is an integer number (23759046).

Almost surely, 2^79196815 is an apocalyptic number.

79196815 is a deficient number, since it is larger than the sum of its proper divisors (15839369).

79196815 is a wasteful number, since it uses less digits than its factorization.

79196815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15839368.

The product of its digits is 136080, while the sum is 46.

The square root of 79196815 is about 8899.2592388356. The cubic root of 79196815 is about 429.4400770558.

The spelling of 79196815 in words is "seventy-nine million, one hundred ninety-six thousand, eight hundred fifteen".