13867279 has 2 divisors, whose sum is σ = 13867280. Its totient is φ = 13867278.

The previous prime is 13867241. The next prime is 13867297. The reversal of 13867279 is 97276831.

It is a happy number.

Together with next prime (13867297) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13867279 - 2⁹ = 13866767 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13867379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6933639 + 6933640.

It is an arithmetic number, because the mean of its divisors is an integer number (6933640).

Almost surely, 2^13867279 is an apocalyptic number.

13867279 is a deficient number, since it is larger than the sum of its proper divisors (1).

13867279 is an equidigital number, since it uses as much as digits as its factorization.

13867279 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 127008, while the sum is 43.

The square root of 13867279 is about 3723.8795630364. The cubic root of 13867279 is about 240.2501962596.

The spelling of 13867279 in words is "thirteen million, eight hundred sixty-seven thousand, two hundred seventy-nine".