79868448 has 144 divisors (see below), whose sum is σ = 262525536. Its totient is φ = 22763520.

The previous prime is 79868429. The next prime is 79868449. The reversal of 79868448 is 84486897.

It is a tau number, because it is divible by the number of its divisors (144).

It is a junction number, because it is equal to n+sod(n) for n = 79868394 and 79868403.

It is not an unprimeable number, because it can be changed into a prime (79868449) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 53115 + ... + 54597.

It is an arithmetic number, because the mean of its divisors is an integer number (1823094).

Almost surely, 2^79868448 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 79868448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (131262768).

79868448 is an abundant number, since it is smaller than the sum of its proper divisors (182657088).

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

79868448 is a wasteful number, since it uses less digits than its factorization.

79868448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1527 (or 1516 counting only the distinct ones).

The product of its digits is 3096576, while the sum is 54.

The square root of 79868448 is about 8936.9149039252. The cubic root of 79868448 is about 430.6506249343.

The spelling of 79868448 in words is "seventy-nine million, eight hundred sixty-eight thousand, four hundred forty-eight".