13634965 has 8 divisors (see below), whose sum is σ = 16405560. Its totient is φ = 10878912.

The previous prime is 13634941. The next prime is 13634977. The reversal of 13634965 is 56943631.

It can be written as a sum of positive squares in 4 ways, for example, as 77841 + 13557124 = 279^2 + 3682^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13634965 - 2¹¹ = 13632917 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1450 + ... + 5419.

It is an arithmetic number, because the mean of its divisors is an integer number (2050695).

Almost surely, 2^13634965 is an apocalyptic number.

It is an amenable number.

13634965 is a deficient number, since it is larger than the sum of its proper divisors (2770595).

13634965 is an equidigital number, since it uses as much as digits as its factorization.

13634965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7271.

The product of its digits is 58320, while the sum is 37.

The square root of 13634965 is about 3692.5553482649. Note that the first 3 decimals coincide. The cubic root of 13634965 is about 238.9010228398.

It can be divided in two parts, 1363 and 4965, that added together give a triangular number (6328 = T₁₁₂).

The spelling of 13634965 in words is "thirteen million, six hundred thirty-four thousand, nine hundred sixty-five".