22397567 has 2 divisors, whose sum is σ = 22397568. Its totient is φ = 22397566.

The previous prime is 22397563. The next prime is 22397579. The reversal of 22397567 is 76579322.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22397567 - 2² = 22397563 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 (22397563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11198783 + 11198784.

It is an arithmetic number, because the mean of its divisors is an integer number (11198784).

Almost surely, 2^22397567 is an apocalyptic number.

22397567 is a deficient number, since it is larger than the sum of its proper divisors (1).

22397567 is an equidigital number, since it uses as much as digits as its factorization.

22397567 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 158760, while the sum is 41.

The square root of 22397567 is about 4732.6067869621. The cubic root of 22397567 is about 281.8817429144.

The spelling of 22397567 in words is "twenty-two million, three hundred ninety-seven thousand, five hundred sixty-seven".