13432689 has 8 divisors (see below), whose sum is σ = 19900320. Its totient is φ = 8955108.

The previous prime is 13432687. The next prime is 13432693. The reversal of 13432689 is 98623431.

It is not a de Polignac number, because 13432689 - 2¹ = 13432687 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13432687) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 248727 + ... + 248780.

It is an arithmetic number, because the mean of its divisors is an integer number (2487540).

Almost surely, 2^13432689 is an apocalyptic number.

It is an amenable number.

13432689 is a deficient number, since it is larger than the sum of its proper divisors (6467631).

13432689 is an equidigital number, since it uses as much as digits as its factorization.

13432689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497516 (or 497510 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 13432689 is about 3665.0633009540. The cubic root of 13432689 is about 237.7137591667.

It can be divided in two parts, 134 and 32689, that added together give a palindrome (32823).

The spelling of 13432689 in words is "thirteen million, four hundred thirty-two thousand, six hundred eighty-nine".