79415772 has 48 divisors (see below), whose sum is σ = 199003392. Its totient is φ = 24559360.

The previous prime is 79415753. The next prime is 79415773. The reversal of 79415772 is 27751497.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79415773) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11743 + ... + 17225.

It is an arithmetic number, because the mean of its divisors is an integer number (4145904).

Almost surely, 2^79415772 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 79415772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99501696).

79415772 is an abundant number, since it is smaller than the sum of its proper divisors (119587620).

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

79415772 is a wasteful number, since it uses less digits than its factorization.

79415772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5578 (or 5576 counting only the distinct ones).

The product of its digits is 123480, while the sum is 42.

The square root of 79415772 is about 8911.5527266577. The cubic root of 79415772 is about 429.8354733828.

The spelling of 79415772 in words is "seventy-nine million, four hundred fifteen thousand, seven hundred seventy-two".