13859636 has 12 divisors (see below), whose sum is σ = 27719328. Its totient is φ = 5939832.

The previous prime is 13859623. The next prime is 13859647. The reversal of 13859636 is 63695831.

13859636 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 13859593 and 13859602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 247466 + ... + 247521.

It is an arithmetic number, because the mean of its divisors is an integer number (2309944).

Almost surely, 2^13859636 is an apocalyptic number.

It is an amenable number.

13859636 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13859636 is a wasteful number, since it uses less digits than its factorization.

13859636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494998 (or 494996 counting only the distinct ones).

The product of its digits is 116640, while the sum is 41.

The square root of 13859636 is about 3722.8532068831. The cubic root of 13859636 is about 240.2060498989.

The spelling of 13859636 in words is "thirteen million, eight hundred fifty-nine thousand, six hundred thirty-six".