979004909 has 2 divisors, whose sum is σ = 979004910. Its totient is φ = 979004908.

The previous prime is 979004903. The next prime is 979004911. The reversal of 979004909 is 909400979.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 875982409 + 103022500 = 29597^2 + 10150^2 .

It is a cyclic number.

It is not a de Polignac number, because 979004909 - 2²⁰ = 977956333 is a prime.

It is a super-2 number, since 2×979004909² = 1916901223692196562, which contains 22 as substring.

Together with 979004911, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (979004903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 489502454 + 489502455.

It is an arithmetic number, because the mean of its divisors is an integer number (489502455).

Almost surely, 2^979004909 is an apocalyptic number.

It is an amenable number.

979004909 is a deficient number, since it is larger than the sum of its proper divisors (1).

979004909 is an equidigital number, since it uses as much as digits as its factorization.

979004909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 183708, while the sum is 47.

The square root of 979004909 is about 31289.0541403859. The cubic root of 979004909 is about 992.9520798525.

The spelling of 979004909 in words is "nine hundred seventy-nine million, four thousand, nine hundred nine".