13885207 has 4 divisors (see below), whose sum is σ = 15868816. Its totient is φ = 11901600.

The previous prime is 13885189. The next prime is 13885213. The reversal of 13885207 is 70258831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70258831 = 71 ⋅989561.

It is a cyclic number.

It is not a de Polignac number, because 13885207 - 2¹¹ = 13883159 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 (13885297) 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, 991794 + ... + 991807.

It is an arithmetic number, because the mean of its divisors is an integer number (3967204).

Almost surely, 2^13885207 is an apocalyptic number.

13885207 is a deficient number, since it is larger than the sum of its proper divisors (1983609).

13885207 is an equidigital number, since it uses as much as digits as its factorization.

13885207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1983608.

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 13885207 is about 3726.2859525270. The cubic root of 13885207 is about 240.3536856967.

The spelling of 13885207 in words is "thirteen million, eight hundred eighty-five thousand, two hundred seven".