7929660979 has 2 divisors, whose sum is σ = 7929660980. Its totient is φ = 7929660978.

The previous prime is 7929660943. The next prime is 7929660997. The reversal of 7929660979 is 9790669297.

Together with next prime (7929660997) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is an emirp because it is prime and its reverse (9790669297) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7929660979 - 2¹¹ = 7929658931 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7929660979.

It is not a weakly prime, because it can be changed into another prime (7929660919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3964830489 + 3964830490.

It is an arithmetic number, because the mean of its divisors is an integer number (3964830490).

Almost surely, 2^7929660979 is an apocalyptic number.

7929660979 is a deficient number, since it is larger than the sum of its proper divisors (1).

7929660979 is an equidigital number, since it uses as much as digits as its factorization.

7929660979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23147208, while the sum is 64.

The square root of 7929660979 is about 89048.6438919763. The cubic root of 7929660979 is about 1994.1211514178.

The spelling of 7929660979 in words is "seven billion, nine hundred twenty-nine million, six hundred sixty thousand, nine hundred seventy-nine".