79424 has 28 divisors (see below), whose sum is σ = 169164. Its totient is φ = 36864.

The previous prime is 79423. The next prime is 79427. The reversal of 79424 is 42497.

It can be written as a sum of positive squares in 2 ways, for example, as 53824 + 25600 = 232^2 + 160^2 .

It is a zygodrome in base 3.

It is a junction number, because it is equal to n+sod(n) for n = 79393 and 79402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1052 + ... + 1124.

2⁷⁹⁴²⁴ 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 79424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84582).

79424 is an abundant number, since it is smaller than the sum of its proper divisors (89740).

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

79424 is a wasteful number, since it uses less digits than its factorization.

79424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102 (or 92 counting only the distinct ones).

The product of its digits is 2016, while the sum is 26.

The square root of 79424 is about 281.8226392609. The cubic root of 79424 is about 42.9850317471.

It can be divided in two parts, 794 and 24, that added together give a palindrome (818).

The spelling of 79424 in words is "seventy-nine thousand, four hundred twenty-four".