14640663 has 4 divisors (see below), whose sum is σ = 19520888. Its totient is φ = 9760440.

The previous prime is 14640653. The next prime is 14640677. The reversal of 14640663 is 36604641.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 14640663 - 2⁵ = 14640631 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 14640663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14640653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2440108 + ... + 2440113.

It is an arithmetic number, because the mean of its divisors is an integer number (4880222).

Almost surely, 2^14640663 is an apocalyptic number.

14640663 is a deficient number, since it is larger than the sum of its proper divisors (4880225).

14640663 is an equidigital number, since it uses as much as digits as its factorization.

14640663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4880224.

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 14640663 is about 3826.3119318738. The cubic root of 14640663 is about 244.6359329603.

The spelling of 14640663 in words is "fourteen million, six hundred forty thousand, six hundred sixty-three".