979965773 has 2 divisors, whose sum is σ = 979965774. Its totient is φ = 979965772.

The previous prime is 979965737. The next prime is 979965781. The reversal of 979965773 is 377569979.

Together with previous prime (979965737) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 880724329 + 99241444 = 29677^2 + 9962^2 .

It is an emirp because it is prime and its reverse (377569979) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 979965773 - 2²⁸ = 711530317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (979965713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 489982886 + 489982887.

It is an arithmetic number, because the mean of its divisors is an integer number (489982887).

Almost surely, 2^979965773 is an apocalyptic number.

It is an amenable number.

979965773 is a deficient number, since it is larger than the sum of its proper divisors (1).

979965773 is an equidigital number, since it uses as much as digits as its factorization.

979965773 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22504230, while the sum is 62.

The square root of 979965773 is about 31304.4050095190. The cubic root of 979965773 is about 993.2768245434.

The spelling of 979965773 in words is "nine hundred seventy-nine million, nine hundred sixty-five thousand, seven hundred seventy-three".