13889085 has 64 divisors (see below), whose sum is σ = 27869184. Its totient is φ = 5760000.

The previous prime is 13889081. The next prime is 13889089. The reversal of 13889085 is 58098831.

13889085 is nontrivially palindromic in base 16.

13889085 is a nontrivial binomial coefficient, being equal to C(5271, 2).

It is an interprime number because it is at equal distance from previous prime (13889081) and next prime (13889089).

It is not a de Polignac number, because 13889085 - 2² = 13889081 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13889081) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 55210 + ... + 55460.

It is an arithmetic number, because the mean of its divisors is an integer number (435456).

Almost surely, 2^13889085 is an apocalyptic number.

13889085 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13889085 is the 5270-th triangular number.

It is an amenable number.

13889085 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

13889085 is a wasteful number, since it uses less digits than its factorization.

13889085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314.

The product of its (nonzero) digits is 69120, while the sum is 42.

The square root of 13889085 is about 3726.8062734733. The cubic root of 13889085 is about 240.3760597439.

The spelling of 13889085 in words is "thirteen million, eight hundred eighty-nine thousand, eighty-five".