22573643 has 2 divisors, whose sum is σ = 22573644. Its totient is φ = 22573642.

The previous prime is 22573633. The next prime is 22573679. The reversal of 22573643 is 34637522.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22573643 - 2¹⁶ = 22508107 is a prime.

It is a super-3 number, since 3×22573643³ (a number of 23 digits) contains 333 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22573613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11286821 + 11286822.

It is an arithmetic number, because the mean of its divisors is an integer number (11286822).

Almost surely, 2^22573643 is an apocalyptic number.

22573643 is a deficient number, since it is larger than the sum of its proper divisors (1).

22573643 is an equidigital number, since it uses as much as digits as its factorization.

22573643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30240, while the sum is 32.

The square root of 22573643 is about 4751.1728025825. The cubic root of 22573643 is about 282.6184764237.

The spelling of 22573643 in words is "twenty-two million, five hundred seventy-three thousand, six hundred forty-three".