22868089 has 4 divisors (see below), whose sum is σ = 22880356. Its totient is φ = 22855824.

The previous prime is 22868081. The next prime is 22868099. The reversal of 22868089 is 98086822.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 98086822 = 2 ⋅49043411.

It can be written as a sum of positive squares in 2 ways, for example, as 4549689 + 18318400 = 2133^2 + 4280^2 .

It is a cyclic number.

It is not a de Polignac number, because 22868089 - 2³ = 22868081 is a prime.

It is a super-4 number, since 4×22868089⁴ (a number of 31 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22868081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2694 + ... + 7279.

It is an arithmetic number, because the mean of its divisors is an integer number (5720089).

Almost surely, 2^22868089 is an apocalyptic number.

It is an amenable number.

22868089 is a deficient number, since it is larger than the sum of its proper divisors (12267).

22868089 is an equidigital number, since it uses as much as digits as its factorization.

22868089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12266.

The product of its (nonzero) digits is 110592, while the sum is 43.

The square root of 22868089 is about 4782.0590753356. The cubic root of 22868089 is about 283.8419779834.

The spelling of 22868089 in words is "twenty-two million, eight hundred sixty-eight thousand, eighty-nine".