979970911 has 2 divisors, whose sum is σ = 979970912. Its totient is φ = 979970910.

The previous prime is 979970881. The next prime is 979970939. The reversal of 979970911 is 119079979.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 979970911 - 2¹⁵ = 979938143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (979970941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 489985455 + 489985456.

It is an arithmetic number, because the mean of its divisors is an integer number (489985456).

Almost surely, 2^979970911 is an apocalyptic number.

979970911 is a deficient number, since it is larger than the sum of its proper divisors (1).

979970911 is an equidigital number, since it uses as much as digits as its factorization.

979970911 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 321489, while the sum is 52.

The square root of 979970911 is about 31304.4870745393. The cubic root of 979970911 is about 993.2785604705.

The spelling of 979970911 in words is "nine hundred seventy-nine million, nine hundred seventy thousand, nine hundred eleven".