979806913 has 2 divisors, whose sum is σ = 979806914. Its totient is φ = 979806912.

The previous prime is 979806907. The next prime is 979806929. The reversal of 979806913 is 319608979.

979806913 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 979502209 + 304704 = 31297^2 + 552^2 .

It is an emirp because it is prime and its reverse (319608979) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 979806913 - 2²⁵ = 946252481 is a prime.

It is not a weakly prime, because it can be changed into another prime (979806973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 489903456 + 489903457.

It is an arithmetic number, because the mean of its divisors is an integer number (489903457).

Almost surely, 2^979806913 is an apocalyptic number.

It is an amenable number.

979806913 is a deficient number, since it is larger than the sum of its proper divisors (1).

979806913 is an equidigital number, since it uses as much as digits as its factorization.

979806913 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 734832, while the sum is 52.

The square root of 979806913 is about 31301.8675640927. The cubic root of 979806913 is about 993.2231490349.

The spelling of 979806913 in words is "nine hundred seventy-nine million, eight hundred six thousand, nine hundred thirteen".