22259887 has 8 divisors (see below), whose sum is σ = 25234160. Its totient is φ = 19465920.

The previous prime is 22259873. The next prime is 22259893. The reversal of 22259887 is 78895222.

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 22259887 - 2²³ = 13871279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22250887) 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, 44814 + ... + 45307.

It is an arithmetic number, because the mean of its divisors is an integer number (3154270).

Almost surely, 2^22259887 is an apocalyptic number.

22259887 is a deficient number, since it is larger than the sum of its proper divisors (2974273).

22259887 is a wasteful number, since it uses less digits than its factorization.

22259887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90153.

The product of its digits is 161280, while the sum is 43.

The square root of 22259887 is about 4718.0384695337. The cubic root of 22259887 is about 281.3029706319.

The spelling of 22259887 in words is "twenty-two million, two hundred fifty-nine thousand, eight hundred eighty-seven".