13636736 has 16 divisors (see below), whose sum is σ = 27167190. Its totient is φ = 6818304.

The previous prime is 13636709. The next prime is 13636747. The reversal of 13636736 is 63763631.

It can be written as a sum of positive squares in only one way, i.e., 13366336 + 270400 = 3656^2 + 520^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a junction number, because it is equal to n+sod(n) for n = 13636696 and 13636705.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53141 + ... + 53396.

Almost surely, 2^13636736 is an apocalyptic number.

13636736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13636736 is a deficient number, since it is larger than the sum of its proper divisors (13530454).

13636736 is an equidigital number, since it uses as much as digits as its factorization.

13636736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106551 (or 106539 counting only the distinct ones).

The product of its digits is 40824, while the sum is 35.

The square root of 13636736 is about 3692.7951473105. The cubic root of 13636736 is about 238.9113657436.

The spelling of 13636736 in words is "thirteen million, six hundred thirty-six thousand, seven hundred thirty-six".