22436987 has 2 divisors, whose sum is σ = 22436988. Its totient is φ = 22436986.

The previous prime is 22436977. The next prime is 22437017. The reversal of 22436987 is 78963422.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22436987 - 2⁴ = 22436971 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22436917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11218493 + 11218494.

It is an arithmetic number, because the mean of its divisors is an integer number (11218494).

Almost surely, 2^22436987 is an apocalyptic number.

22436987 is a deficient number, since it is larger than the sum of its proper divisors (1).

22436987 is an equidigital number, since it uses as much as digits as its factorization.

22436987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145152, while the sum is 41.

The square root of 22436987 is about 4736.7696798557. The cubic root of 22436987 is about 282.0470177962.

The spelling of 22436987 in words is "twenty-two million, four hundred thirty-six thousand, nine hundred eighty-seven".