13806536 has 16 divisors (see below), whose sum is σ = 25965900. Its totient is φ = 6882304.

The previous prime is 13806503. The next prime is 13806539. The reversal of 13806536 is 63560831.

13806536 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 2 ways, for example, as 13764100 + 42436 = 3710^2 + 206^2 .

It is not an unprimeable number, because it can be changed into a prime (13806539) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 380 + ... + 5268.

Almost surely, 2^13806536 is an apocalyptic number.

It is an amenable number.

13806536 is a deficient number, since it is larger than the sum of its proper divisors (12159364).

13806536 is a wasteful number, since it uses less digits than its factorization.

13806536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5248 (or 5244 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 13806536 is about 3715.7147360905. The cubic root of 13806536 is about 239.8988925966.

The spelling of 13806536 in words is "thirteen million, eight hundred six thousand, five hundred thirty-six".