979311847 has 2 divisors, whose sum is σ = 979311848. Its totient is φ = 979311846.

The previous prime is 979311841. The next prime is 979311923. The reversal of 979311847 is 748113979.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 979311847 - 2⁷ = 979311719 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 979311847.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (979311841) 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, 489655923 + 489655924.

It is an arithmetic number, because the mean of its divisors is an integer number (489655924).

Almost surely, 2^979311847 is an apocalyptic number.

979311847 is a deficient number, since it is larger than the sum of its proper divisors (1).

979311847 is an equidigital number, since it uses as much as digits as its factorization.

979311847 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 381024, while the sum is 49.

The square root of 979311847 is about 31293.9586342156. The cubic root of 979311847 is about 993.0558392505.

The spelling of 979311847 in words is "nine hundred seventy-nine million, three hundred eleven thousand, eight hundred forty-seven".