79405872 has 200 divisors, whose sum is σ = 262576944. Its totient is φ = 20547072.

The previous prime is 79405871. The next prime is 79405901. The reversal of 79405872 is 27850497.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (79405871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1498198 + ... + 1498250.

Almost surely, 2^79405872 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 79405872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (131288472).

79405872 is an abundant number, since it is smaller than the sum of its proper divisors (183171072).

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

79405872 is a wasteful number, since it uses less digits than its factorization.

79405872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105 (or 78 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 42.

The square root of 79405872 is about 8910.9972505887. The cubic root of 79405872 is about 429.8176114900.

The spelling of 79405872 in words is "seventy-nine million, four hundred five thousand, eight hundred seventy-two".