13446643 has 8 divisors (see below), whose sum is σ = 16271712. Its totient is φ = 10847616.

The previous prime is 13446617. The next prime is 13446679. The reversal of 13446643 is 34664431.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 13446643 - 2⁵ = 13446611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13446613) 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, 56380 + ... + 56617.

It is an arithmetic number, because the mean of its divisors is an integer number (2033964).

Almost surely, 2^13446643 is an apocalyptic number.

13446643 is a deficient number, since it is larger than the sum of its proper divisors (2825069).

13446643 is a wasteful number, since it uses less digits than its factorization.

13446643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113021.

The product of its digits is 20736, while the sum is 31.

The square root of 13446643 is about 3666.9664574414. The cubic root of 13446643 is about 237.7960437552.

The spelling of 13446643 in words is "thirteen million, four hundred forty-six thousand, six hundred forty-three".