22837889 has 2 divisors, whose sum is σ = 22837890. Its totient is φ = 22837888.

The previous prime is 22837853. The next prime is 22837891. The reversal of 22837889 is 98873822.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19536400 + 3301489 = 4420^2 + 1817^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22837889 is a prime.

Together with 22837891, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22837849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11418944 + 11418945.

It is an arithmetic number, because the mean of its divisors is an integer number (11418945).

Almost surely, 2^22837889 is an apocalyptic number.

It is an amenable number.

22837889 is a deficient number, since it is larger than the sum of its proper divisors (1).

22837889 is an equidigital number, since it uses as much as digits as its factorization.

22837889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 387072, while the sum is 47.

The square root of 22837889 is about 4778.9003965348. The cubic root of 22837889 is about 283.7169740392.

The spelling of 22837889 in words is "twenty-two million, eight hundred thirty-seven thousand, eight hundred eighty-nine".