13630665 has 8 divisors (see below), whose sum is σ = 21809088. Its totient is φ = 7269680.

The previous prime is 13630663. The next prime is 13630691. The reversal of 13630665 is 56603631.

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

It is not a de Polignac number, because 13630665 - 2¹ = 13630663 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13630663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 454341 + ... + 454370.

It is an arithmetic number, because the mean of its divisors is an integer number (2726136).

Almost surely, 2^13630665 is an apocalyptic number.

13630665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13630665 is a deficient number, since it is larger than the sum of its proper divisors (8178423).

13630665 is an equidigital number, since it uses as much as digits as its factorization.

13630665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 908719.

The product of its (nonzero) digits is 9720, while the sum is 30.

The square root of 13630665 is about 3691.9730497391. The cubic root of 13630665 is about 238.8759064715.

The spelling of 13630665 in words is "thirteen million, six hundred thirty thousand, six hundred sixty-five".