79319646 has 48 divisors (see below), whose sum is σ = 197340000. Its totient is φ = 22555584.

The previous prime is 79319629. The next prime is 79319651. The reversal of 79319646 is 64691397.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27480 + ... + 30228.

It is an arithmetic number, because the mean of its divisors is an integer number (4111250).

Almost surely, 2^79319646 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79319646, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98670000).

79319646 is an abundant number, since it is smaller than the sum of its proper divisors (118020354).

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

79319646 is a wasteful number, since it uses less digits than its factorization.

79319646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2993 (or 2990 counting only the distinct ones).

The product of its digits is 244944, while the sum is 45.

The square root of 79319646 is about 8906.1577574171. The cubic root of 79319646 is about 429.6619770034.

The spelling of 79319646 in words is "seventy-nine million, three hundred nineteen thousand, six hundred forty-six".