13636385 has 16 divisors (see below), whose sum is σ = 18821376. Its totient is φ = 9290688.

The previous prime is 13636369. The next prime is 13636393. The reversal of 13636385 is 58363631.

It is a cyclic number.

It is not a de Polignac number, because 13636385 - 2⁴ = 13636369 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4679 + ... + 7011.

It is an arithmetic number, because the mean of its divisors is an integer number (1176336).

Almost surely, 2^13636385 is an apocalyptic number.

It is an amenable number.

13636385 is a deficient number, since it is larger than the sum of its proper divisors (5184991).

13636385 is a wasteful number, since it uses less digits than its factorization.

13636385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2512.

The product of its digits is 38880, while the sum is 35.

The square root of 13636385 is about 3692.7476220289. The cubic root of 13636385 is about 238.9093159225.

The spelling of 13636385 in words is "thirteen million, six hundred thirty-six thousand, three hundred eighty-five".