13332639 has 4 divisors (see below), whose sum is σ = 17776856. Its totient is φ = 8888424.

The previous prime is 13332637. The next prime is 13332653. The reversal of 13332639 is 93623331.

13332639 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 13332639 - 2¹ = 13332637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13332637) 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, 2222104 + ... + 2222109.

It is an arithmetic number, because the mean of its divisors is an integer number (4444214).

Almost surely, 2^13332639 is an apocalyptic number.

13332639 is a deficient number, since it is larger than the sum of its proper divisors (4444217).

13332639 is an equidigital number, since it uses as much as digits as its factorization.

13332639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4444216.

The product of its digits is 8748, while the sum is 30.

The square root of 13332639 is about 3651.3886399560. The cubic root of 13332639 is about 237.1221041119.

The spelling of 13332639 in words is "thirteen million, three hundred thirty-two thousand, six hundred thirty-nine".