13634443 has 4 divisors (see below), whose sum is σ = 13695808. Its totient is φ = 13573080.

The previous prime is 13634407. The next prime is 13634449. The reversal of 13634443 is 34443631.

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 13634443 - 2⁹ = 13633931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13634449) 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, 30348 + ... + 30793.

It is an arithmetic number, because the mean of its divisors is an integer number (3423952).

Almost surely, 2^13634443 is an apocalyptic number.

13634443 is a deficient number, since it is larger than the sum of its proper divisors (61365).

13634443 is an equidigital number, since it uses as much as digits as its factorization.

13634443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61364.

The product of its digits is 10368, while the sum is 28.

The square root of 13634443 is about 3692.4846648294. The cubic root of 13634443 is about 238.8979741111.

The spelling of 13634443 in words is "thirteen million, six hundred thirty-four thousand, four hundred forty-three".