961979 has 8 divisors (see below), whose sum is σ = 1034208. Its totient is φ = 891520.

The previous prime is 961973. The next prime is 961981. The reversal of 961979 is 979169.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 961979 - 2¹⁶ = 896443 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 961979.

It is not an unprimeable number, because it can be changed into a prime (961973) 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, 809 + ... + 1605.

It is an arithmetic number, because the mean of its divisors is an integer number (129276).

2⁹⁶¹⁹⁷⁹ is an apocalyptic number.

961979 is a deficient number, since it is larger than the sum of its proper divisors (72229).

961979 is a wasteful number, since it uses less digits than its factorization.

961979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 885.

The product of its digits is 30618, while the sum is 41.

The square root of 961979 is about 980.8052813887. The cubic root of 961979 is about 98.7162230259.

The spelling of 961979 in words is "nine hundred sixty-one thousand, nine hundred seventy-nine".