79958 has 4 divisors (see below), whose sum is σ = 119940. Its totient is φ = 39978.

The previous prime is 79943. The next prime is 79967. The reversal of 79958 is 85997.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 85997 = 23 ⋅3739.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 79958.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19988 + ... + 19991.

It is an arithmetic number, because the mean of its divisors is an integer number (29985).

2⁷⁹⁹⁵⁸ is an apocalyptic number.

79958 is a deficient number, since it is larger than the sum of its proper divisors (39982).

79958 is a wasteful number, since it uses less digits than its factorization.

79958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39981.

The product of its digits is 22680, while the sum is 38.

The square root of 79958 is about 282.7684565152. The cubic root of 79958 is about 43.0811519592.

The spelling of 79958 in words is "seventy-nine thousand, nine hundred fifty-eight".