979791727 has 2 divisors, whose sum is σ = 979791728. Its totient is φ = 979791726.

The previous prime is 979791691. The next prime is 979791739. The reversal of 979791727 is 727197979.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 979791727 - 2⁷ = 979791599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (979791427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 489895863 + 489895864.

It is an arithmetic number, because the mean of its divisors is an integer number (489895864).

Almost surely, 2^979791727 is an apocalyptic number.

979791727 is a deficient number, since it is larger than the sum of its proper divisors (1).

979791727 is an equidigital number, since it uses as much as digits as its factorization.

979791727 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3500658, while the sum is 58.

The square root of 979791727 is about 31301.6249897669. The cubic root of 979791727 is about 993.2180176958.

The spelling of 979791727 in words is "nine hundred seventy-nine million, seven hundred ninety-one thousand, seven hundred twenty-seven".