979709 has 2 divisors, whose sum is σ = 979710. Its totient is φ = 979708.

The previous prime is 979691. The next prime is 979717. The reversal of 979709 is 907979.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 940900 + 38809 = 970^2 + 197^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-979709 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (979009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 489854 + 489855.

It is an arithmetic number, because the mean of its divisors is an integer number (489855).

2⁹⁷⁹⁷⁰⁹ is an apocalyptic number.

It is an amenable number.

979709 is a deficient number, since it is larger than the sum of its proper divisors (1).

979709 is an equidigital number, since it uses as much as digits as its factorization.

979709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 35721, while the sum is 41.

The square root of 979709 is about 989.8025055535. The cubic root of 979709 is about 99.3190063367.

It can be divided in two parts, 97970 and 9, that added together give a palindrome (97979).

The spelling of 979709 in words is "nine hundred seventy-nine thousand, seven hundred nine".