13868985 has 24 divisors (see below), whose sum is σ = 24033024. Its totient is φ = 6826560.

The previous prime is 13868971. The next prime is 13868999. The reversal of 13868985 is 58986831.

It is an interprime number because it is at equal distance from previous prime (13868971) and next prime (13868999).

It is not a de Polignac number, because 13868985 - 2⁷ = 13868857 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 201 + ... + 5270.

It is an arithmetic number, because the mean of its divisors is an integer number (1001376).

Almost surely, 2^13868985 is an apocalyptic number.

13868985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13868985 is a deficient number, since it is larger than the sum of its proper divisors (10164039).

13868985 is a wasteful number, since it uses less digits than its factorization.

13868985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5505 (or 5492 counting only the distinct ones).

The product of its digits is 414720, while the sum is 48.

The square root of 13868985 is about 3724.1086181797. The cubic root of 13868985 is about 240.2600479887.

The spelling of 13868985 in words is "thirteen million, eight hundred sixty-eight thousand, nine hundred eighty-five".