979681699 has 2 divisors, whose sum is σ = 979681700. Its totient is φ = 979681698.

The previous prime is 979681693. The next prime is 979681751. The reversal of 979681699 is 996186979.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 979681699 - 2⁹ = 979681187 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 979681699.

It is not a weakly prime, because it can be changed into another prime (979681693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 489840849 + 489840850.

It is an arithmetic number, because the mean of its divisors is an integer number (489840850).

Almost surely, 2^979681699 is an apocalyptic number.

979681699 is a deficient number, since it is larger than the sum of its proper divisors (1).

979681699 is an equidigital number, since it uses as much as digits as its factorization.

979681699 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13226976, while the sum is 64.

The square root of 979681699 is about 31299.8673958852. The cubic root of 979681699 is about 993.1808377251.

The spelling of 979681699 in words is "nine hundred seventy-nine million, six hundred eighty-one thousand, six hundred ninety-nine".