22423567 has 2 divisors, whose sum is σ = 22423568. Its totient is φ = 22423566.

The previous prime is 22423537. The next prime is 22423579. The reversal of 22423567 is 76532422.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22423567 - 2¹⁹ = 21899279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22423537) 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 as a sum of consecutive naturals, namely, 11211783 + 11211784.

It is an arithmetic number, because the mean of its divisors is an integer number (11211784).

Almost surely, 2^22423567 is an apocalyptic number.

22423567 is a deficient number, since it is larger than the sum of its proper divisors (1).

22423567 is an equidigital number, since it uses as much as digits as its factorization.

22423567 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20160, while the sum is 31.

The square root of 22423567 is about 4735.3528907569. The cubic root of 22423567 is about 281.9907739718.

Adding to 22423567 its reverse (76532422), we get a palindrome (98955989).

The spelling of 22423567 in words is "twenty-two million, four hundred twenty-three thousand, five hundred sixty-seven".