13868479 has 4 divisors (see below), whose sum is σ = 13876240. Its totient is φ = 13860720.

The previous prime is 13868443. The next prime is 13868497. The reversal of 13868479 is 97486831.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 97486831 = 13 ⋅7498987.

It is a cyclic number.

It is not a de Polignac number, because 13868479 - 2¹¹ = 13866431 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 (13868419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 307 + ... + 5275.

It is an arithmetic number, because the mean of its divisors is an integer number (3469060).

Almost surely, 2^13868479 is an apocalyptic number.

13868479 is a deficient number, since it is larger than the sum of its proper divisors (7761).

13868479 is an equidigital number, since it uses as much as digits as its factorization.

13868479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7760.

The product of its digits is 290304, while the sum is 46.

The square root of 13868479 is about 3724.0406818401. The cubic root of 13868479 is about 240.2571260478.

The spelling of 13868479 in words is "thirteen million, eight hundred sixty-eight thousand, four hundred seventy-nine".