22226863 has 4 divisors (see below), whose sum is σ = 22238128. Its totient is φ = 22215600.

The previous prime is 22226851. The next prime is 22226873. The reversal of 22226863 is 36862222.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22226863 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 (22226833) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1806 + ... + 6907.

It is an arithmetic number, because the mean of its divisors is an integer number (5559532).

Almost surely, 2^22226863 is an apocalyptic number.

22226863 is a deficient number, since it is larger than the sum of its proper divisors (11265).

22226863 is an equidigital number, since it uses as much as digits as its factorization.

22226863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11264.

The product of its digits is 13824, while the sum is 31.

The square root of 22226863 is about 4714.5374110298. The cubic root of 22226863 is about 281.1637913229.

The spelling of 22226863 in words is "twenty-two million, two hundred twenty-six thousand, eight hundred sixty-three".