79455872 has 64 divisors (see below), whose sum is σ = 171319200. Its totient is φ = 36578304.

The previous prime is 79455839. The next prime is 79455917. The reversal of 79455872 is 27855497.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89543 + ... + 90425.

Almost surely, 2^79455872 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 79455872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85659600).

79455872 is an abundant number, since it is smaller than the sum of its proper divisors (91863328).

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

79455872 is a wasteful number, since it uses less digits than its factorization.

79455872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 953 (or 941 counting only the distinct ones).

The product of its digits is 705600, while the sum is 47.

The square root of 79455872 is about 8913.8023312165. The cubic root of 79455872 is about 429.9078078900.

The spelling of 79455872 in words is "seventy-nine million, four hundred fifty-five thousand, eight hundred seventy-two".