13826289 has 8 divisors (see below), whose sum is σ = 19236672. Its totient is φ = 8816720.

The previous prime is 13826261. The next prime is 13826297. The reversal of 13826289 is 98262831.

It is a happy number.

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 13826289 - 2⁵ = 13826257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13826249) 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, 100122 + ... + 100259.

It is an arithmetic number, because the mean of its divisors is an integer number (2404584).

Almost surely, 2^13826289 is an apocalyptic number.

It is an amenable number.

13826289 is a deficient number, since it is larger than the sum of its proper divisors (5410383).

13826289 is a wasteful number, since it uses less digits than its factorization.

13826289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200407.

The product of its digits is 41472, while the sum is 39.

The square root of 13826289 is about 3718.3718211067. The cubic root of 13826289 is about 240.0132457967.

The spelling of 13826289 in words is "thirteen million, eight hundred twenty-six thousand, two hundred eighty-nine".