13859207 has 4 divisors (see below), whose sum is σ = 14034720. Its totient is φ = 13683696.

The previous prime is 13859177. The next prime is 13859243. The reversal of 13859207 is 70295831.

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 13859207 - 2⁶ = 13859143 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 (13859507) 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, 87638 + ... + 87795.

It is an arithmetic number, because the mean of its divisors is an integer number (3508680).

Almost surely, 2^13859207 is an apocalyptic number.

13859207 is a deficient number, since it is larger than the sum of its proper divisors (175513).

13859207 is an equidigital number, since it uses as much as digits as its factorization.

13859207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175512.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 13859207 is about 3722.7955893387. The cubic root of 13859207 is about 240.2035714918.

The spelling of 13859207 in words is "thirteen million, eight hundred fifty-nine thousand, two hundred seven".