979996249 has 2 divisors, whose sum is σ = 979996250. Its totient is φ = 979996248.

The previous prime is 979996243. The next prime is 979996279. The reversal of 979996249 is 942699979.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 593166025 + 386830224 = 24355^2 + 19668^2 .

It is a cyclic number.

It is not a de Polignac number, because 979996249 - 2²⁵ = 946441817 is a prime.

It is not a weakly prime, because it can be changed into another prime (979996243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 489998124 + 489998125.

It is an arithmetic number, because the mean of its divisors is an integer number (489998125).

Almost surely, 2^979996249 is an apocalyptic number.

It is an amenable number.

979996249 is a deficient number, since it is larger than the sum of its proper divisors (1).

979996249 is an equidigital number, since it uses as much as digits as its factorization.

979996249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19840464, while the sum is 64.

The square root of 979996249 is about 31304.8917742898. The cubic root of 979996249 is about 993.2871210903.

The spelling of 979996249 in words is "nine hundred seventy-nine million, nine hundred ninety-six thousand, two hundred forty-nine".