22342447 has 2 divisors, whose sum is σ = 22342448. Its totient is φ = 22342446.

The previous prime is 22342433. The next prime is 22342457. The reversal of 22342447 is 74424322.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22342447 - 2⁷ = 22342319 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22342427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11171223 + 11171224.

It is an arithmetic number, because the mean of its divisors is an integer number (11171224).

Almost surely, 2^22342447 is an apocalyptic number.

22342447 is a deficient number, since it is larger than the sum of its proper divisors (1).

22342447 is an equidigital number, since it uses as much as digits as its factorization.

22342447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10752, while the sum is 28.

The square root of 22342447 is about 4726.7797706261. The cubic root of 22342447 is about 281.6503177063.

Adding to 22342447 its reverse (74424322), we get a palindrome (96766769).

The spelling of 22342447 in words is "twenty-two million, three hundred forty-two thousand, four hundred forty-seven".