22284747 has 8 divisors (see below), whose sum is σ = 33014480. Its totient is φ = 14856480.

The previous prime is 22284719. The next prime is 22284749. The reversal of 22284747 is 74748222.

It is not a de Polignac number, because 22284747 - 2¹⁵ = 22251979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22284749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 412654 + ... + 412707.

It is an arithmetic number, because the mean of its divisors is an integer number (4126810).

Almost surely, 2^22284747 is an apocalyptic number.

22284747 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

22284747 is a deficient number, since it is larger than the sum of its proper divisors (10729733).

22284747 is an equidigital number, since it uses as much as digits as its factorization.

22284747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 825370 (or 825364 counting only the distinct ones).

The product of its digits is 50176, while the sum is 36.

The square root of 22284747 is about 4720.6723038144. The cubic root of 22284747 is about 281.4076520575.

The spelling of 22284747 in words is "twenty-two million, two hundred eighty-four thousand, seven hundred forty-seven".