13875479 has 4 divisors (see below), whose sum is σ = 13920984. Its totient is φ = 13829976.

The previous prime is 13875469. The next prime is 13875493. The reversal of 13875479 is 97457831.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13875479 - 2¹² = 13871383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13875419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22292 + ... + 22905.

It is an arithmetic number, because the mean of its divisors is an integer number (3480246).

Almost surely, 2^13875479 is an apocalyptic number.

13875479 is a deficient number, since it is larger than the sum of its proper divisors (45505).

13875479 is an equidigital number, since it uses as much as digits as its factorization.

13875479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45504.

The product of its digits is 211680, while the sum is 44.

The square root of 13875479 is about 3724.9804026330. The cubic root of 13875479 is about 240.2975418474.

The spelling of 13875479 in words is "thirteen million, eight hundred seventy-five thousand, four hundred seventy-nine".