14646643 has 4 divisors (see below), whose sum is σ = 15978168. Its totient is φ = 13315120.

The previous prime is 14646631. The next prime is 14646659. The reversal of 14646643 is 34664641.

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

It is a cyclic number.

It is not a de Polignac number, because 14646643 - 2¹³ = 14638451 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 14646599 and 14646608.

It is not an unprimeable number, because it can be changed into a prime (14646623) 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, 665746 + ... + 665767.

It is an arithmetic number, because the mean of its divisors is an integer number (3994542).

Almost surely, 2^14646643 is an apocalyptic number.

14646643 is a deficient number, since it is larger than the sum of its proper divisors (1331525).

14646643 is a wasteful number, since it uses less digits than its factorization.

14646643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1331524.

The product of its digits is 41472, while the sum is 34.

The square root of 14646643 is about 3827.0932834202. The cubic root of 14646643 is about 244.6692357268.

The spelling of 14646643 in words is "fourteen million, six hundred forty-six thousand, six hundred forty-three".