79943 has 2 divisors, whose sum is σ = 79944. Its totient is φ = 79942.

The previous prime is 79939. The next prime is 79967. The reversal of 79943 is 34997.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 79943 - 2² = 79939 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39971 + 39972.

It is an arithmetic number, because the mean of its divisors is an integer number (39972).

2⁷⁹⁹⁴³ is an apocalyptic number.

79943 is a deficient number, since it is larger than the sum of its proper divisors (1).

79943 is an equidigital number, since it uses as much as digits as its factorization.

79943 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6804, while the sum is 32.

The square root of 79943 is about 282.7419318035. The cubic root of 79943 is about 43.0784578044.

It can be divided in two parts, 7994 and 3, that added together give a palindrome (7997).

The spelling of 79943 in words is "seventy-nine thousand, nine hundred forty-three".