13873985 has 8 divisors (see below), whose sum is σ = 16721640. Its totient is φ = 11050624.

The previous prime is 13873967. The next prime is 13873987. The reversal of 13873985 is 58937831.

It is a happy number.

13873985 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 87616 + 13786369 = 296^2 + 3713^2 .

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 13873985 - 2¹⁶ = 13808449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13873987) 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, 4790 + ... + 7119.

It is an arithmetic number, because the mean of its divisors is an integer number (2090205).

Almost surely, 2^13873985 is an apocalyptic number.

It is an amenable number.

13873985 is a deficient number, since it is larger than the sum of its proper divisors (2847655).

13873985 is a wasteful number, since it uses less digits than its factorization.

13873985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12147.

The product of its digits is 181440, while the sum is 44.

The square root of 13873985 is about 3724.7798592669. The cubic root of 13873985 is about 240.2889171022.

The spelling of 13873985 in words is "thirteen million, eight hundred seventy-three thousand, nine hundred eighty-five".