79902 has 24 divisors (see below), whose sum is σ = 181584. Its totient is φ = 25344.

The previous prime is 79901. The next prime is 79903. The reversal of 79902 is 20997.

It is an interprime number because it is at equal distance from previous prime (79901) and next prime (79903).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79901) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 318 + ... + 510.

It is an arithmetic number, because the mean of its divisors is an integer number (7566).

2⁷⁹⁹⁰² is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79902, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90792).

79902 is an abundant number, since it is smaller than the sum of its proper divisors (101682).

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

79902 is a wasteful number, since it uses less digits than its factorization.

79902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224 (or 221 counting only the distinct ones).

The product of its (nonzero) digits is 1134, while the sum is 27.

The square root of 79902 is about 282.6694182256. The cubic root of 79902 is about 43.0710920613.

The spelling of 79902 in words is "seventy-nine thousand, nine hundred two".