22108887 has 12 divisors (see below), whose sum is σ = 31975944. Its totient is φ = 14720400.

The previous prime is 22108873. The next prime is 22108937. The reversal of 22108887 is 78880122.

It is not a de Polignac number, because 22108887 - 2⁸ = 22108631 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22108087) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12213 + ... + 13905.

It is an arithmetic number, because the mean of its divisors is an integer number (2664662).

Almost surely, 2^22108887 is an apocalyptic number.

22108887 is a deficient number, since it is larger than the sum of its proper divisors (9867057).

22108887 is a wasteful number, since it uses less digits than its factorization.

22108887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3150 (or 3147 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 36.

The square root of 22108887 is about 4702.0088260232. The cubic root of 22108887 is about 280.6654537805.

The spelling of 22108887 in words is "twenty-two million, one hundred eight thousand, eight hundred eighty-seven".