979316249 has 4 divisors (see below), whose sum is σ = 980122164. Its totient is φ = 978510336.

The previous prime is 979316237. The next prime is 979316267. The reversal of 979316249 is 942613979.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 673765849 + 305550400 = 25957^2 + 17480^2 .

It is a cyclic number.

It is not a de Polignac number, because 979316249 - 2¹² = 979312153 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 979316197 and 979316206.

It is not an unprimeable number, because it can be changed into a prime (979316209) 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, 401132 + ... + 403565.

It is an arithmetic number, because the mean of its divisors is an integer number (245030541).

Almost surely, 2^979316249 is an apocalyptic number.

It is an amenable number.

979316249 is a deficient number, since it is larger than the sum of its proper divisors (805915).

979316249 is a wasteful number, since it uses less digits than its factorization.

979316249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 805914.

The product of its digits is 734832, while the sum is 50.

The square root of 979316249 is about 31294.0289672008. The cubic root of 979316249 is about 993.0573271746.

The spelling of 979316249 in words is "nine hundred seventy-nine million, three hundred sixteen thousand, two hundred forty-nine".