79972648 has 32 divisors (see below), whose sum is σ = 173548800. Its totient is φ = 33838272.

The previous prime is 79972639. The next prime is 79972649. The reversal of 79972648 is 84627997.

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 79972595 and 79972604.

It is not an unprimeable number, because it can be changed into a prime (79972649) 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, 4615 + ... + 13462.

It is an arithmetic number, because the mean of its divisors is an integer number (5423400).

Almost surely, 2^79972648 is an apocalyptic number.

It is an amenable number.

79972648 is an abundant number, since it is smaller than the sum of its proper divisors (93576152).

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

79972648 is a wasteful number, since it uses less digits than its factorization.

79972648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18169 (or 18165 counting only the distinct ones).

The product of its digits is 1524096, while the sum is 52.

The square root of 79972648 is about 8942.7427560005. The cubic root of 79972648 is about 430.8378256607.

The spelling of 79972648 in words is "seventy-nine million, nine hundred seventy-two thousand, six hundred forty-eight".