22447663 has 4 divisors (see below), whose sum is σ = 25654480. Its totient is φ = 19240848.

The previous prime is 22447661. The next prime is 22447679. The reversal of 22447663 is 36674422.

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 22447663 - 2¹ = 22447661 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 (22447661) 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, 1603398 + ... + 1603411.

It is an arithmetic number, because the mean of its divisors is an integer number (6413620).

Almost surely, 2^22447663 is an apocalyptic number.

22447663 is a deficient number, since it is larger than the sum of its proper divisors (3206817).

22447663 is an equidigital number, since it uses as much as digits as its factorization.

22447663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3206816.

The product of its digits is 48384, while the sum is 34.

The square root of 22447663 is about 4737.8964741750. The cubic root of 22447663 is about 282.0917453778.

The spelling of 22447663 in words is "twenty-two million, four hundred forty-seven thousand, six hundred sixty-three".