22289207 has 4 divisors (see below), whose sum is σ = 22891656. Its totient is φ = 21686760.

The previous prime is 22289191. The next prime is 22289219. The reversal of 22289207 is 70298222.

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 22289207 - 2⁴ = 22289191 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 (22289237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 301169 + ... + 301242.

It is an arithmetic number, because the mean of its divisors is an integer number (5722914).

Almost surely, 2^22289207 is an apocalyptic number.

22289207 is a deficient number, since it is larger than the sum of its proper divisors (602449).

22289207 is an equidigital number, since it uses as much as digits as its factorization.

22289207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 602448.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 22289207 is about 4721.1446705222. The cubic root of 22289207 is about 281.4264241562.

The spelling of 22289207 in words is "twenty-two million, two hundred eighty-nine thousand, two hundred seven".