13436789 has 4 divisors (see below), whose sum is σ = 13472256. Its totient is φ = 13401324.

The previous prime is 13436741. The next prime is 13436791. The reversal of 13436789 is 98763431.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13436789 - 2¹² = 13432693 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 (13436089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17159 + ... + 17924.

It is an arithmetic number, because the mean of its divisors is an integer number (3368064).

Almost surely, 2^13436789 is an apocalyptic number.

It is an amenable number.

13436789 is a deficient number, since it is larger than the sum of its proper divisors (35467).

13436789 is an equidigital number, since it uses as much as digits as its factorization.

13436789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35466.

The product of its digits is 108864, while the sum is 41.

The square root of 13436789 is about 3665.6225937759. The cubic root of 13436789 is about 237.7379421447.

The spelling of 13436789 in words is "thirteen million, four hundred thirty-six thousand, seven hundred eighty-nine".