979223251 has 4 divisors (see below), whose sum is σ = 1012989600. Its totient is φ = 945456904.

The previous prime is 979223227. The next prime is 979223261. The reversal of 979223251 is 152322979.

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

It is a cyclic number.

It is not a de Polignac number, because 979223251 - 2¹¹ = 979221203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (979223261) 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, 16883131 + ... + 16883188.

It is an arithmetic number, because the mean of its divisors is an integer number (253247400).

Almost surely, 2^979223251 is an apocalyptic number.

979223251 is a deficient number, since it is larger than the sum of its proper divisors (33766349).

979223251 is a wasteful number, since it uses less digits than its factorization.

979223251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33766348.

The product of its digits is 68040, while the sum is 40.

The square root of 979223251 is about 31292.5430574123. The cubic root of 979223251 is about 993.0258918853.

The spelling of 979223251 in words is "nine hundred seventy-nine million, two hundred twenty-three thousand, two hundred fifty-one".