22785663 has 8 divisors (see below), whose sum is σ = 31701888. Its totient is φ = 14529944.

The previous prime is 22785649. The next prime is 22785667. The reversal of 22785663 is 36658722.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22785663 - 2¹⁰ = 22784639 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22785667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 165045 + ... + 165182.

It is an arithmetic number, because the mean of its divisors is an integer number (3962736).

Almost surely, 2^22785663 is an apocalyptic number.

22785663 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

22785663 is a deficient number, since it is larger than the sum of its proper divisors (8916225).

22785663 is a wasteful number, since it uses less digits than its factorization.

22785663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330253.

The product of its digits is 120960, while the sum is 39.

The square root of 22785663 is about 4773.4330413236. The cubic root of 22785663 is about 283.5005396753.

The spelling of 22785663 in words is "twenty-two million, seven hundred eighty-five thousand, six hundred sixty-three".