79974 has 16 divisors (see below), whose sum is σ = 177840. Its totient is φ = 26640.

The previous prime is 79973. The next prime is 79979. The reversal of 79974 is 47997.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79973) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 687 + ... + 794.

It is an arithmetic number, because the mean of its divisors is an integer number (11115).

2⁷⁹⁹⁷⁴ is an apocalyptic number.

79974 is an abundant number, since it is smaller than the sum of its proper divisors (97866).

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 (88920).

79974 is a wasteful number, since it uses less digits than its factorization.

79974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1492 (or 1486 counting only the distinct ones).

The product of its digits is 15876, while the sum is 36.

The square root of 79974 is about 282.7967467988. The cubic root of 79974 is about 43.0840253530.

It can be divided in two parts, 7997 and 4, that added together give a triangular number (8001 = T₁₂₆).

The spelling of 79974 in words is "seventy-nine thousand, nine hundred seventy-four".