980979 has 4 divisors (see below), whose sum is σ = 1307976. Its totient is φ = 653984.

The previous prime is 980963. The next prime is 980999. The reversal of 980979 is 979089.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 980979 - 2⁴ = 980963 is a prime.

It is a D-number.

It is a plaindrome in base 7.

It is a self number, because there is not a number n which added to its sum of digits gives 980979.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 980979.

It is not an unprimeable number, because it can be changed into a prime (980909) 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, 163494 + ... + 163499.

It is an arithmetic number, because the mean of its divisors is an integer number (326994).

2⁹⁸⁰⁹⁷⁹ is an apocalyptic number.

980979 is a deficient number, since it is larger than the sum of its proper divisors (326997).

980979 is a wasteful number, since it uses less digits than its factorization.

980979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326996.

The product of its (nonzero) digits is 40824, while the sum is 42.

The square root of 980979 is about 990.4438399021. The cubic root of 980979 is about 99.3619036576.

The spelling of 980979 in words is "nine hundred eighty thousand, nine hundred seventy-nine".