979309 has 4 divisors (see below), whose sum is σ = 984960. Its totient is φ = 973660.

The previous prime is 979291. The next prime is 979313. The reversal of 979309 is 903979.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 979309 - 2⁹ = 978797 is a prime.

It is a super-2 number, since 2×979309² = 1918092234962, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (979369) 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, 2557 + ... + 2914.

It is an arithmetic number, because the mean of its divisors is an integer number (246240).

2⁹⁷⁹³⁰⁹ is an apocalyptic number.

It is an amenable number.

979309 is a deficient number, since it is larger than the sum of its proper divisors (5651).

979309 is a wasteful number, since it uses less digits than its factorization.

979309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5650.

The product of its (nonzero) digits is 15309, while the sum is 37.

The square root of 979309 is about 989.6004244138. The cubic root of 979309 is about 99.3054876931.

The spelling of 979309 in words is "nine hundred seventy-nine thousand, three hundred nine".