13229643 has 32 divisors (see below), whose sum is σ = 21565440. Its totient is φ = 7045920.

The previous prime is 13229641. The next prime is 13229647. The reversal of 13229643 is 34692231.

It is not a de Polignac number, because 13229643 - 2¹ = 13229641 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13229643.

It is not an unprimeable number, because it can be changed into a prime (13229641) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28096 + ... + 28562.

It is an arithmetic number, because the mean of its divisors is an integer number (673920).

Almost surely, 2^13229643 is an apocalyptic number.

13229643 is a deficient number, since it is larger than the sum of its proper divisors (8335797).

13229643 is a wasteful number, since it uses less digits than its factorization.

13229643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 567.

The product of its digits is 7776, while the sum is 30.

The square root of 13229643 is about 3637.2576207907. The cubic root of 13229643 is about 236.5099275169.

The spelling of 13229643 in words is "thirteen million, two hundred twenty-nine thousand, six hundred forty-three".