22247263 has 4 divisors (see below), whose sum is σ = 23014440. Its totient is φ = 21480088.

The previous prime is 22247231. The next prime is 22247273. The reversal of 22247263 is 36274222.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22247263 - 2⁵ = 22247231 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 (22247273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 383545 + ... + 383602.

It is an arithmetic number, because the mean of its divisors is an integer number (5753610).

Almost surely, 2^22247263 is an apocalyptic number.

22247263 is a deficient number, since it is larger than the sum of its proper divisors (767177).

22247263 is an equidigital number, since it uses as much as digits as its factorization.

22247263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 767176.

The product of its digits is 8064, while the sum is 28.

The square root of 22247263 is about 4716.7004356859. The cubic root of 22247263 is about 281.2497831768.

The spelling of 22247263 in words is "twenty-two million, two hundred forty-seven thousand, two hundred sixty-three".