22809743 has 4 divisors (see below), whose sum is σ = 24883368. Its totient is φ = 20736120.

The previous prime is 22809719. The next prime is 22809751. The reversal of 22809743 is 34790822.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22809743 - 2¹² = 22805647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22809763) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1036796 + ... + 1036817.

It is an arithmetic number, because the mean of its divisors is an integer number (6220842).

Almost surely, 2^22809743 is an apocalyptic number.

22809743 is a deficient number, since it is larger than the sum of its proper divisors (2073625).

22809743 is a wasteful number, since it uses less digits than its factorization.

22809743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2073624.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 22809743 is about 4775.9546689641. The cubic root of 22809743 is about 283.6003727674.

The spelling of 22809743 in words is "twenty-two million, eight hundred nine thousand, seven hundred forty-three".