79666944 has 216 divisors, whose sum is σ = 258647760. Its totient is φ = 21676032.

The previous prime is 79666919. The next prime is 79666991. The reversal of 79666944 is 44966697.

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, 1091292 + ... + 1091364.

Almost surely, 2^79666944 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 79666944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129323880).

79666944 is an abundant number, since it is smaller than the sum of its proper divisors (178980816).

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

79666944 is a wasteful number, since it uses less digits than its factorization.

79666944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135 (or 114 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 51.

The square root of 79666944 is about 8925.6340951218. The cubic root of 79666944 is about 430.2881501113.

The spelling of 79666944 in words is "seventy-nine million, six hundred sixty-six thousand, nine hundred forty-four".