15797279 has 2 divisors, whose sum is σ = 15797280. Its totient is φ = 15797278.

The previous prime is 15797269. The next prime is 15797291. The reversal of 15797279 is 97279751.

15797279 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 15797279 - 2⁴ = 15797263 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 (15797269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7898639 + 7898640.

It is an arithmetic number, because the mean of its divisors is an integer number (7898640).

Almost surely, 2^15797279 is an apocalyptic number.

15797279 is a deficient number, since it is larger than the sum of its proper divisors (1).

15797279 is an equidigital number, since it uses as much as digits as its factorization.

15797279 is an evil number, because the sum of its binary digits is even.

The product of its digits is 277830, while the sum is 47.

The square root of 15797279 is about 3974.5790972127. The cubic root of 15797279 is about 250.9154649372.

The spelling of 15797279 in words is "fifteen million, seven hundred ninety-seven thousand, two hundred seventy-nine".