13856207 has 8 divisors (see below), whose sum is σ = 14704416. Its totient is φ = 13011712.

The previous prime is 13856177. The next prime is 13856221. The reversal of 13856207 is 70265831.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 13856207 - 2⁸ = 13855951 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 (13856257) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12083 + ... + 13179.

It is an arithmetic number, because the mean of its divisors is an integer number (1838052).

Almost surely, 2^13856207 is an apocalyptic number.

13856207 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

13856207 is a deficient number, since it is larger than the sum of its proper divisors (848209).

13856207 is a wasteful number, since it uses less digits than its factorization.

13856207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1857.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 13856207 is about 3722.3926445231. The cubic root of 13856207 is about 240.1862385445.

The spelling of 13856207 in words is "thirteen million, eight hundred fifty-six thousand, two hundred seven".