979844279 has 2 divisors, whose sum is σ = 979844280. Its totient is φ = 979844278.

The previous prime is 979844267. The next prime is 979844293. The reversal of 979844279 is 972448979.

It is a weak prime.

It is an emirp because it is prime and its reverse (972448979) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 979844279 - 2⁸ = 979844023 is a prime.

It is a super-2 number, since 2×979844279² = 1920189622178059682, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (979844479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 489922139 + 489922140.

It is an arithmetic number, because the mean of its divisors is an integer number (489922140).

Almost surely, 2^979844279 is an apocalyptic number.

979844279 is a deficient number, since it is larger than the sum of its proper divisors (1).

979844279 is an equidigital number, since it uses as much as digits as its factorization.

979844279 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9144576, while the sum is 59.

The square root of 979844279 is about 31302.4644237479. The cubic root of 979844279 is about 993.2357747553.

The spelling of 979844279 in words is "nine hundred seventy-nine million, eight hundred forty-four thousand, two hundred seventy-nine".