13986036 has 36 divisors (see below), whose sum is σ = 37434852. Its totient is φ = 4387584.

The previous prime is 13986029. The next prime is 13986067. The reversal of 13986036 is 63068931.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 6533136 + 7452900 = 2556^2 + 2730^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10815 + ... + 12038.

It is an arithmetic number, because the mean of its divisors is an integer number (1039857).

Almost surely, 2^13986036 is an apocalyptic number.

It is an amenable number.

13986036 is an abundant number, since it is smaller than the sum of its proper divisors (23448816).

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

13986036 is a wasteful number, since it uses less digits than its factorization.

13986036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22880 (or 22875 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 13986036 is about 3739.7909032458. The cubic root of 13986036 is about 240.9340682691.

It can be divided in two parts, 13 and 986036, that added together give a square (986049 = 993²).

The spelling of 13986036 in words is "thirteen million, nine hundred eighty-six thousand, thirty-six".