79816617 has 8 divisors (see below), whose sum is σ = 118246880. Its totient is φ = 53211060.

The previous prime is 79816589. The next prime is 79816619. The reversal of 79816617 is 71661897.

It is not a de Polignac number, because 79816617 - 2⁶ = 79816553 is a prime.

It is a super-3 number, since 3×79816617³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79816619) 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, 1478059 + ... + 1478112.

It is an arithmetic number, because the mean of its divisors is an integer number (14780860).

Almost surely, 2^79816617 is an apocalyptic number.

It is an amenable number.

79816617 is a deficient number, since it is larger than the sum of its proper divisors (38430263).

79816617 is a wasteful number, since it uses less digits than its factorization.

79816617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2956180 (or 2956174 counting only the distinct ones).

The product of its digits is 127008, while the sum is 45.

The square root of 79816617 is about 8934.0146071069. The cubic root of 79816617 is about 430.5574472015.

The spelling of 79816617 in words is "seventy-nine million, eight hundred sixteen thousand, six hundred seventeen".