79117673 has 4 divisors (see below), whose sum is σ = 81669888. Its totient is φ = 76565460.

The previous prime is 79117669. The next prime is 79117679. The reversal of 79117673 is 37671197.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 79117673 - 2² = 79117669 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 79117673.

It is not an unprimeable number, because it can be changed into a prime (79117679) 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, 1276061 + ... + 1276122.

It is an arithmetic number, because the mean of its divisors is an integer number (20417472).

Almost surely, 2^79117673 is an apocalyptic number.

It is an amenable number.

79117673 is a deficient number, since it is larger than the sum of its proper divisors (2552215).

79117673 is a wasteful number, since it uses less digits than its factorization.

79117673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2552214.

The product of its digits is 55566, while the sum is 41.

The square root of 79117673 is about 8894.8115775434. The cubic root of 79117673 is about 429.2969817645.

The spelling of 79117673 in words is "seventy-nine million, one hundred seventeen thousand, six hundred seventy-three".