979725159 has 24 divisors (see below), whose sum is σ = 1688417520. Its totient is φ = 559842192.

The previous prime is 979725151. The next prime is 979725179. The reversal of 979725159 is 951527979.

It is not a de Polignac number, because 979725159 - 2³ = 979725151 is a prime.

It is a super-2 number, since 2×979725159² = 1919722774355150562, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (979725151) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 368944 + ... + 371589.

It is an arithmetic number, because the mean of its divisors is an integer number (70350730).

Almost surely, 2^979725159 is an apocalyptic number.

979725159 is a deficient number, since it is larger than the sum of its proper divisors (708692361).

979725159 is a wasteful number, since it uses less digits than its factorization.

979725159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 740556 (or 740543 counting only the distinct ones).

The product of its digits is 1786050, while the sum is 54.

The square root of 979725159 is about 31300.5616403284. The cubic root of 979725159 is about 993.1955237879.

The spelling of 979725159 in words is "nine hundred seventy-nine million, seven hundred twenty-five thousand, one hundred fifty-nine".