79722 has 24 divisors (see below), whose sum is σ = 178464. Its totient is φ = 25704.

The previous prime is 79699. The next prime is 79757. The reversal of 79722 is 22797.

It is an unprimeable number.

79722 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 723 + ... + 825.

It is an arithmetic number, because the mean of its divisors is an integer number (7436).

2⁷⁹⁷²² is an apocalyptic number.

79722 is an abundant number, since it is smaller than the sum of its proper divisors (98742).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89232).

79722 is a wasteful number, since it uses less digits than its factorization.

79722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154 (or 151 counting only the distinct ones).

The product of its digits is 1764, while the sum is 27.

The square root of 79722 is about 282.3508455805. The cubic root of 79722 is about 43.0387248048.

The spelling of 79722 in words is "seventy-nine thousand, seven hundred twenty-two".