979311923 has 2 divisors, whose sum is σ = 979311924. Its totient is φ = 979311922.

The previous prime is 979311847. The next prime is 979311929. The reversal of 979311923 is 329113979.

It is a strong prime.

It is an emirp because it is prime and its reverse (329113979) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 979311923 - 2¹⁸ = 979049779 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (979311929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 489655961 + 489655962.

It is an arithmetic number, because the mean of its divisors is an integer number (489655962).

Almost surely, 2^979311923 is an apocalyptic number.

979311923 is a deficient number, since it is larger than the sum of its proper divisors (1).

979311923 is an equidigital number, since it uses as much as digits as its factorization.

979311923 is an evil number, because the sum of its binary digits is even.

The product of its digits is 91854, while the sum is 44.

The square root of 979311923 is about 31293.9598485075. The cubic root of 979311923 is about 993.0558649393.

The spelling of 979311923 in words is "nine hundred seventy-nine million, three hundred eleven thousand, nine hundred twenty-three".