979268321 has 4 divisors (see below), whose sum is σ = 980497812. Its totient is φ = 978038832.

The previous prime is 979268299. The next prime is 979268327. The reversal of 979268321 is 123862979.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 123862979 = 71 ⋅1744549.

It can be written as a sum of positive squares in 2 ways, for example, as 503374096 + 475894225 = 22436^2 + 21815^2 .

It is a cyclic number.

It is not a de Polignac number, because 979268321 - 2¹⁴ = 979251937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (979268327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 613550 + ... + 615143.

It is an arithmetic number, because the mean of its divisors is an integer number (245124453).

Almost surely, 2^979268321 is an apocalyptic number.

It is an amenable number.

979268321 is a deficient number, since it is larger than the sum of its proper divisors (1229491).

979268321 is a wasteful number, since it uses less digits than its factorization.

979268321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1229490.

The product of its digits is 326592, while the sum is 47.

The square root of 979268321 is about 31293.2631887440. The cubic root of 979268321 is about 993.0411267463.

The spelling of 979268321 in words is "nine hundred seventy-nine million, two hundred sixty-eight thousand, three hundred twenty-one".