7798279 has 2 divisors, whose sum is σ = 7798280. Its totient is φ = 7798278.

The previous prime is 7798253. The next prime is 7798289. The reversal of 7798279 is 9728977.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7798279 - 2¹¹ = 7796231 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7798249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3899139 + 3899140.

It is an arithmetic number, because the mean of its divisors is an integer number (3899140).

Almost surely, 2^7798279 is an apocalyptic number.

7798279 is a deficient number, since it is larger than the sum of its proper divisors (1).

7798279 is an equidigital number, since it uses as much as digits as its factorization.

7798279 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 444528, while the sum is 49.

The square root of 7798279 is about 2792.5398833320. The cubic root of 7798279 is about 198.3046614078.

The spelling of 7798279 in words is "seven million, seven hundred ninety-eight thousand, two hundred seventy-nine".