979988159 has 2 divisors, whose sum is σ = 979988160. Its totient is φ = 979988158.

The previous prime is 979988143. The next prime is 979988201. The reversal of 979988159 is 951889979.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 979988159 - 2⁴ = 979988143 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 979988095 and 979988104.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (979988459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 489994079 + 489994080.

It is an arithmetic number, because the mean of its divisors is an integer number (489994080).

Almost surely, 2^979988159 is an apocalyptic number.

979988159 is a deficient number, since it is larger than the sum of its proper divisors (1).

979988159 is an equidigital number, since it uses as much as digits as its factorization.

979988159 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14696640, while the sum is 65.

The square root of 979988159 is about 31304.7625609906. The cubic root of 979988159 is about 993.2843878435.

The spelling of 979988159 in words is "nine hundred seventy-nine million, nine hundred eighty-eight thousand, one hundred fifty-nine".