79662072 has 128 divisors (see below), whose sum is σ = 239500800. Its totient is φ = 21600768.

The previous prime is 79662049. The next prime is 79662091. The reversal of 79662072 is 27026697.

It is a self number, because there is not a number n which added to its sum of digits gives 79662072.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 404278 + ... + 404474.

It is an arithmetic number, because the mean of its divisors is an integer number (1871100).

Almost surely, 2^79662072 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 79662072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119750400).

79662072 is an abundant number, since it is smaller than the sum of its proper divisors (159838728).

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

79662072 is a wasteful number, since it uses less digits than its factorization.

79662072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325 (or 321 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 39.

The square root of 79662072 is about 8925.3611691628. The cubic root of 79662072 is about 430.2793785661.

The spelling of 79662072 in words is "seventy-nine million, six hundred sixty-two thousand, seventy-two".