22889387 has 2 divisors, whose sum is σ = 22889388. Its totient is φ = 22889386.

The previous prime is 22889371. The next prime is 22889401. The reversal of 22889387 is 78398822.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22889387 - 2⁴ = 22889371 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22889887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11444693 + 11444694.

It is an arithmetic number, because the mean of its divisors is an integer number (11444694).

Almost surely, 2^22889387 is an apocalyptic number.

22889387 is a deficient number, since it is larger than the sum of its proper divisors (1).

22889387 is an equidigital number, since it uses as much as digits as its factorization.

22889387 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 22889387 is about 4784.2854220876. The cubic root of 22889387 is about 283.9300685782.

The spelling of 22889387 in words is "twenty-two million, eight hundred eighty-nine thousand, three hundred eighty-seven".