13634385 has 8 divisors (see below), whose sum is σ = 21815040. Its totient is φ = 7271664.

The previous prime is 13634363. The next prime is 13634399. The reversal of 13634385 is 58343631.

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

It is not a de Polignac number, because 13634385 - 2⁵ = 13634353 is a prime.

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, 454465 + ... + 454494.

It is an arithmetic number, because the mean of its divisors is an integer number (2726880).

Almost surely, 2^13634385 is an apocalyptic number.

13634385 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13634385 is a deficient number, since it is larger than the sum of its proper divisors (8180655).

13634385 is an equidigital number, since it uses as much as digits as its factorization.

13634385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 908967.

The product of its digits is 25920, while the sum is 33.

The square root of 13634385 is about 3692.4768110308. The cubic root of 13634385 is about 238.8976353587.

The spelling of 13634385 in words is "thirteen million, six hundred thirty-four thousand, three hundred eighty-five".