13226863 has 16 divisors (see below), whose sum is σ = 15353856. Its totient is φ = 11293920.

The previous prime is 13226861. The next prime is 13226897. The reversal of 13226863 is 36862231.

It is not a de Polignac number, because 13226863 - 2¹ = 13226861 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13226861) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8556 + ... + 9982.

It is an arithmetic number, because the mean of its divisors is an integer number (959616).

Almost surely, 2^13226863 is an apocalyptic number.

13226863 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13226863 is a deficient number, since it is larger than the sum of its proper divisors (2126993).

13226863 is a wasteful number, since it uses less digits than its factorization.

13226863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1494.

The product of its digits is 10368, while the sum is 31.

The square root of 13226863 is about 3636.8754446640. The cubic root of 13226863 is about 236.4933600843.

The spelling of 13226863 in words is "thirteen million, two hundred twenty-six thousand, eight hundred sixty-three".