22387089 has 8 divisors (see below), whose sum is σ = 29876832. Its totient is φ = 14911040.

The previous prime is 22387049. The next prime is 22387093. The reversal of 22387089 is 98078322.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22387089 - 2¹² = 22382993 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22387049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1342 + ... + 6824.

It is an arithmetic number, because the mean of its divisors is an integer number (3734604).

Almost surely, 2^22387089 is an apocalyptic number.

It is an amenable number.

22387089 is a deficient number, since it is larger than the sum of its proper divisors (7489743).

22387089 is a wasteful number, since it uses less digits than its factorization.

22387089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6847.

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 22387089 is about 4731.4996565571. The cubic root of 22387089 is about 281.8377795440.

The spelling of 22387089 in words is "twenty-two million, three hundred eighty-seven thousand, eighty-nine".