22798289 has 4 divisors (see below), whose sum is σ = 22819056. Its totient is φ = 22777524.

The previous prime is 22798277. The next prime is 22798301. The reversal of 22798289 is 98289722.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (22798277) and next prime (22798301).

It is a cyclic number.

It is not a de Polignac number, because 22798289 - 2⁴ = 22798273 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 12.

It is a zygodrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (22798229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8639 + ... + 10964.

It is an arithmetic number, because the mean of its divisors is an integer number (5704764).

Almost surely, 2^22798289 is an apocalyptic number.

It is an amenable number.

22798289 is a deficient number, since it is larger than the sum of its proper divisors (20767).

22798289 is a wasteful number, since it uses less digits than its factorization.

22798289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20766.

The product of its digits is 290304, while the sum is 47.

The square root of 22798289 is about 4774.7553864046. The cubic root of 22798289 is about 283.5528944808.

The spelling of 22798289 in words is "twenty-two million, seven hundred ninety-eight thousand, two hundred eighty-nine".