22887239 has 2 divisors, whose sum is σ = 22887240. Its totient is φ = 22887238.

The previous prime is 22887233. The next prime is 22887251. The reversal of 22887239 is 93278822.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22887239 - 2¹² = 22883143 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 22887196 and 22887205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22887233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11443619 + 11443620.

It is an arithmetic number, because the mean of its divisors is an integer number (11443620).

Almost surely, 2^22887239 is an apocalyptic number.

22887239 is a deficient number, since it is larger than the sum of its proper divisors (1).

22887239 is an equidigital number, since it uses as much as digits as its factorization.

22887239 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 22887239 is about 4784.0609318862. The cubic root of 22887239 is about 283.9211867200.

The spelling of 22887239 in words is "twenty-two million, eight hundred eighty-seven thousand, two hundred thirty-nine".