979388225 has 6 divisors (see below), whose sum is σ = 1214441430. Its totient is φ = 783510560.

The previous prime is 979388191. The next prime is 979388243. The reversal of 979388225 is 522883979.

It can be written as a sum of positive squares in 3 ways, for example, as 272679169 + 706709056 = 16513^2 + 26584^2 .

It is not a de Polignac number, because 979388225 - 2⁶ = 979388161 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19587740 + ... + 19587789.

It is an arithmetic number, because the mean of its divisors is an integer number (202406905).

Almost surely, 2^979388225 is an apocalyptic number.

It is an amenable number.

979388225 is a deficient number, since it is larger than the sum of its proper divisors (235053205).

979388225 is a wasteful number, since it uses less digits than its factorization.

979388225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39175539 (or 39175534 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 53.

The square root of 979388225 is about 31295.1789418115. The cubic root of 979388225 is about 993.0816552175.

The spelling of 979388225 in words is "nine hundred seventy-nine million, three hundred eighty-eight thousand, two hundred twenty-five".