22470647 has 2 divisors, whose sum is σ = 22470648. Its totient is φ = 22470646.

The previous prime is 22470619. The next prime is 22470649. The reversal of 22470647 is 74607422.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22470647 - 2⁸ = 22470391 is a prime.

Together with 22470649, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22470649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11235323 + 11235324.

It is an arithmetic number, because the mean of its divisors is an integer number (11235324).

Almost surely, 2^22470647 is an apocalyptic number.

22470647 is a deficient number, since it is larger than the sum of its proper divisors (1).

22470647 is an equidigital number, since it uses as much as digits as its factorization.

22470647 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18816, while the sum is 32.

The square root of 22470647 is about 4740.3214026055. The cubic root of 22470647 is about 282.1879897707.

The spelling of 22470647 in words is "twenty-two million, four hundred seventy thousand, six hundred forty-seven".