979118779 has 2 divisors, whose sum is σ = 979118780. Its totient is φ = 979118778.

The previous prime is 979118737. The next prime is 979118797. The reversal of 979118779 is 977811979.

Together with next prime (979118797) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 979118779 - 2²¹ = 977021627 is a prime.

It is not a weakly prime, because it can be changed into another prime (979118719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 489559389 + 489559390.

It is an arithmetic number, because the mean of its divisors is an integer number (489559390).

Almost surely, 2^979118779 is an apocalyptic number.

979118779 is a deficient number, since it is larger than the sum of its proper divisors (1).

979118779 is an equidigital number, since it uses as much as digits as its factorization.

979118779 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2000376, while the sum is 58.

The square root of 979118779 is about 31290.8737334067. The cubic root of 979118779 is about 992.9905757677.

The spelling of 979118779 in words is "nine hundred seventy-nine million, one hundred eighteen thousand, seven hundred seventy-nine".