13287036 has 72 divisors (see below), whose sum is σ = 36771840. Its totient is φ = 3722208.

The previous prime is 13287007. The next prime is 13287049. The reversal of 13287036 is 63078231.

It is a junction number, because it is equal to n+sod(n) for n = 13286994 and 13287012.

It is a congruent number.

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, 34501 + ... + 34883.

It is an arithmetic number, because the mean of its divisors is an integer number (510720).

Almost surely, 2^13287036 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13287036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18385920).

13287036 is an abundant number, since it is smaller than the sum of its proper divisors (23484804).

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

13287036 is a wasteful number, since it uses less digits than its factorization.

13287036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463 (or 454 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 13287036 is about 3645.1386804894. The cubic root of 13287036 is about 236.8514442269.

The spelling of 13287036 in words is "thirteen million, two hundred eighty-seven thousand, thirty-six".