13859638 has 8 divisors (see below), whose sum is σ = 22388688. Its totient is φ = 6396744.

The previous prime is 13859623. The next prime is 13859647. The reversal of 13859638 is 83695831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 13859594 and 13859603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 266506 + ... + 266557.

It is an arithmetic number, because the mean of its divisors is an integer number (2798586).

Almost surely, 2^13859638 is an apocalyptic number.

13859638 is a deficient number, since it is larger than the sum of its proper divisors (8529050).

13859638 is a wasteful number, since it uses less digits than its factorization.

13859638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533078.

The product of its digits is 155520, while the sum is 43.

The square root of 13859638 is about 3722.8534754943. The cubic root of 13859638 is about 240.2060614531.

The spelling of 13859638 in words is "thirteen million, eight hundred fifty-nine thousand, six hundred thirty-eight".