22306963 has 4 divisors (see below), whose sum is σ = 25493680. Its totient is φ = 19120248.

The previous prime is 22306943. The next prime is 22306979. The reversal of 22306963 is 36960322.

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

It is not a de Polignac number, because 22306963 - 2¹⁷ = 22175891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22306943) 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, 1593348 + ... + 1593361.

It is an arithmetic number, because the mean of its divisors is an integer number (6373420).

Almost surely, 2^22306963 is an apocalyptic number.

22306963 is a deficient number, since it is larger than the sum of its proper divisors (3186717).

22306963 is an equidigital number, since it uses as much as digits as its factorization.

22306963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3186716.

The product of its (nonzero) digits is 11664, while the sum is 31.

The square root of 22306963 is about 4723.0247723255. The cubic root of 22306963 is about 281.5011341757.

The spelling of 22306963 in words is "twenty-two million, three hundred six thousand, nine hundred sixty-three".