79938 has 12 divisors (see below), whose sum is σ = 173238. Its totient is φ = 26640.

The previous prime is 79907. The next prime is 79939. The reversal of 79938 is 83997.

It can be written as a sum of positive squares in only one way, i.e., 71289 + 8649 = 267^2 + 93^2 .

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (79939) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2203 + ... + 2238.

2⁷⁹⁹³⁸ is an apocalyptic number.

79938 is an abundant number, since it is smaller than the sum of its proper divisors (93300).

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

79938 is a wasteful number, since it uses less digits than its factorization.

79938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4449 (or 4446 counting only the distinct ones).

The product of its digits is 13608, while the sum is 36.

The square root of 79938 is about 282.7330896800. The cubic root of 79938 is about 43.0775596779.

It can be divided in two parts, 7993 and 8, that added together give a triangular number (8001 = T₁₂₆).

The spelling of 79938 in words is "seventy-nine thousand, nine hundred thirty-eight".