22889723 has 2 divisors, whose sum is σ = 22889724. Its totient is φ = 22889722.

The previous prime is 22889719. The next prime is 22889743. The reversal of 22889723 is 32798822.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22889723 - 2² = 22889719 is a prime.

It is not a weakly prime, because it can be changed into another prime (22889743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11444861 + 11444862.

It is an arithmetic number, because the mean of its divisors is an integer number (11444862).

Almost surely, 2^22889723 is an apocalyptic number.

22889723 is a deficient number, since it is larger than the sum of its proper divisors (1).

22889723 is an equidigital number, since it uses as much as digits as its factorization.

22889723 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 96768, while the sum is 41.

The square root of 22889723 is about 4784.3205369206. The cubic root of 22889723 is about 283.9314578688.

Subtracting 22889723 from its reverse (32798822), we obtain a palindrome (9909099).

The spelling of 22889723 in words is "twenty-two million, eight hundred eighty-nine thousand, seven hundred twenty-three".