13939285 has 16 divisors (see below), whose sum is σ = 17418240. Its totient is φ = 10696000.

The previous prime is 13939279. The next prime is 13939291. The reversal of 13939285 is 58293931.

13939285 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13939279) and next prime (13939291).

It is not a de Polignac number, because 13939285 - 2⁷ = 13939157 is a prime.

It is a super-2 number, since 2×13939285² = 388607332622450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36204 + ... + 36586.

It is an arithmetic number, because the mean of its divisors is an integer number (1088640).

Almost surely, 2^13939285 is an apocalyptic number.

It is an amenable number.

13939285 is a deficient number, since it is larger than the sum of its proper divisors (3478955).

13939285 is a wasteful number, since it uses less digits than its factorization.

13939285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 668.

The product of its digits is 58320, while the sum is 40.

The square root of 13939285 is about 3733.5351879954. The cubic root of 13939285 is about 240.6653125241.

The spelling of 13939285 in words is "thirteen million, nine hundred thirty-nine thousand, two hundred eighty-five".