15479879 has 2 divisors, whose sum is σ = 15479880. Its totient is φ = 15479878.

The previous prime is 15479857. The next prime is 15479887. The reversal of 15479879 is 97897451.

15479879 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 15479879 - 2¹² = 15475783 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15479839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7739939 + 7739940.

It is an arithmetic number, because the mean of its divisors is an integer number (7739940).

Almost surely, 2^15479879 is an apocalyptic number.

15479879 is a deficient number, since it is larger than the sum of its proper divisors (1).

15479879 is an equidigital number, since it uses as much as digits as its factorization.

15479879 is an evil number, because the sum of its binary digits is even.

The product of its digits is 635040, while the sum is 50.

The square root of 15479879 is about 3934.4477376120. The cubic root of 15479879 is about 249.2236127204.

The spelling of 15479879 in words is "fifteen million, four hundred seventy-nine thousand, eight hundred seventy-nine".