13489633 has 4 divisors (see below), whose sum is σ = 13496980. Its totient is φ = 13482288.

The previous prime is 13489631. The next prime is 13489649. The reversal of 13489633 is 33698431.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1607824 + 11881809 = 1268^2 + 3447^2 .

It is a cyclic number.

It is not a de Polignac number, because 13489633 - 2¹ = 13489631 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13489592 and 13489601.

It is not an unprimeable number, because it can be changed into a prime (13489631) 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, 1783 + ... + 5491.

It is an arithmetic number, because the mean of its divisors is an integer number (3374245).

Almost surely, 2^13489633 is an apocalyptic number.

It is an amenable number.

13489633 is a deficient number, since it is larger than the sum of its proper divisors (7347).

13489633 is an equidigital number, since it uses as much as digits as its factorization.

13489633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7346.

The product of its digits is 46656, while the sum is 37.

The square root of 13489633 is about 3672.8235732199. The cubic root of 13489633 is about 238.0491918657.

The spelling of 13489633 in words is "thirteen million, four hundred eighty-nine thousand, six hundred thirty-three".