22227847 has 2 divisors, whose sum is σ = 22227848. Its totient is φ = 22227846.

The previous prime is 22227827. The next prime is 22227871. The reversal of 22227847 is 74872222.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22227847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22227817) 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 as a sum of consecutive naturals, namely, 11113923 + 11113924.

It is an arithmetic number, because the mean of its divisors is an integer number (11113924).

Almost surely, 2^22227847 is an apocalyptic number.

22227847 is a deficient number, since it is larger than the sum of its proper divisors (1).

22227847 is an equidigital number, since it uses as much as digits as its factorization.

22227847 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25088, while the sum is 34.

The square root of 22227847 is about 4714.6417679395. The cubic root of 22227847 is about 281.1679403727.

The spelling of 22227847 in words is "twenty-two million, two hundred twenty-seven thousand, eight hundred forty-seven".