979393799 has 2 divisors, whose sum is σ = 979393800. Its totient is φ = 979393798.

The previous prime is 979393699. The next prime is 979393871. The reversal of 979393799 is 997393979.

It is a strong prime.

It is an emirp because it is prime and its reverse (997393979) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 979393799 - 2¹⁶ = 979328263 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (979393699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 489696899 + 489696900.

It is an arithmetic number, because the mean of its divisors is an integer number (489696900).

Almost surely, 2^979393799 is an apocalyptic number.

979393799 is a deficient number, since it is larger than the sum of its proper divisors (1).

979393799 is an equidigital number, since it uses as much as digits as its factorization.

979393799 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26040609, while the sum is 65.

The square root of 979393799 is about 31295.2679969353. The cubic root of 979393799 is about 993.0835391918.

The spelling of 979393799 in words is "nine hundred seventy-nine million, three hundred ninety-three thousand, seven hundred ninety-nine".