79117752 has 80 divisors (see below), whose sum is σ = 230914440. Its totient is φ = 22588608.

The previous prime is 79117751. The next prime is 79117757. The reversal of 79117752 is 25771197.

It is a self number, because there is not a number n which added to its sum of digits gives 79117752.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79117751) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 56938 + ... + 58310.

Almost surely, 2^79117752 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79117752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115457220).

79117752 is an abundant number, since it is smaller than the sum of its proper divisors (151796688).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

79117752 is a wasteful number, since it uses less digits than its factorization.

79117752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1410 (or 1385 counting only the distinct ones).

The product of its digits is 30870, while the sum is 39.

The square root of 79117752 is about 8894.8160183334. The cubic root of 79117752 is about 429.2971246506.

The spelling of 79117752 in words is "seventy-nine million, one hundred seventeen thousand, seven hundred fifty-two".