79425720 has 192 divisors, whose sum is σ = 291133440. Its totient is φ = 18604800.

The previous prime is 79425713. The next prime is 79425727. The reversal of 79425720 is 2752497.

It is an interprime number because it is at equal distance from previous prime (79425713) and next prime (79425727).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79425727) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 122437 + ... + 123083.

It is an arithmetic number, because the mean of its divisors is an integer number (1516320).

Almost surely, 2^79425720 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 79425720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145566720).

79425720 is an abundant number, since it is smaller than the sum of its proper divisors (211707720).

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

79425720 is a wasteful number, since it uses less digits than its factorization.

79425720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 706 (or 699 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 79425720 is about 8912.1108610699. The cubic root of 79425720 is about 429.8534203835.

The spelling of 79425720 in words is "seventy-nine million, four hundred twenty-five thousand, seven hundred twenty".