79216259 has 4 divisors (see below), whose sum is σ = 79256304. Its totient is φ = 79176216.

The previous prime is 79216229. The next prime is 79216307. The reversal of 79216259 is 95261297.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 95261297 = 43 ⋅2215379.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79216259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79216229) 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, 16892 + ... + 21065.

It is an arithmetic number, because the mean of its divisors is an integer number (19814076).

Almost surely, 2^79216259 is an apocalyptic number.

79216259 is a deficient number, since it is larger than the sum of its proper divisors (40045).

79216259 is a wasteful number, since it uses less digits than its factorization.

79216259 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40044.

The product of its digits is 68040, while the sum is 41.

The square root of 79216259 is about 8900.3516222675. The cubic root of 79216259 is about 429.4752188293.

The spelling of 79216259 in words is "seventy-nine million, two hundred sixteen thousand, two hundred fifty-nine".