959979 has 4 divisors (see below), whose sum is σ = 1279976. Its totient is φ = 639984.

The previous prime is 959969. The next prime is 960017. The reversal of 959979 is 979959.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 959979 - 2⁵ = 959947 is a prime.

It is a D-number.

It is a Duffinian number.

959979 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (959969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159994 + ... + 159999.

It is an arithmetic number, because the mean of its divisors is an integer number (319994).

2⁹⁵⁹⁹⁷⁹ is an apocalyptic number.

959979 is a deficient number, since it is larger than the sum of its proper divisors (319997).

959979 is a wasteful number, since it uses less digits than its factorization.

959979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319996.

The product of its digits is 229635, while the sum is 48.

The square root of 959979 is about 979.7851805370. The cubic root of 959979 is about 98.6477636561.

The spelling of 959979 in words is "nine hundred fifty-nine thousand, nine hundred seventy-nine".