13633789 has 8 divisors (see below), whose sum is σ = 14814072. Its totient is φ = 12472320.

The previous prime is 13633759. The next prime is 13633793. The reversal of 13633789 is 98733631.

13633789 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 128164 + 13505625 = 358^2 + 3675^2 .

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 13633789 - 2⁵ = 13633757 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13633759) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3172 + ... + 6109.

It is an arithmetic number, because the mean of its divisors is an integer number (1851759).

Almost surely, 2^13633789 is an apocalyptic number.

It is an amenable number.

13633789 is a deficient number, since it is larger than the sum of its proper divisors (1180283).

13633789 is a wasteful number, since it uses less digits than its factorization.

13633789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9407.

The product of its digits is 81648, while the sum is 40.

The square root of 13633789 is about 3692.3961055120. The cubic root of 13633789 is about 238.8941543298.

The spelling of 13633789 in words is "thirteen million, six hundred thirty-three thousand, seven hundred eighty-nine".