22298879 has 4 divisors (see below), whose sum is σ = 22319760. Its totient is φ = 22278000.

The previous prime is 22298851. The next prime is 22298921. The reversal of 22298879 is 97889222.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22298879 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 (22298819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8747 + ... + 11004.

It is an arithmetic number, because the mean of its divisors is an integer number (5579940).

Almost surely, 2^22298879 is an apocalyptic number.

22298879 is a deficient number, since it is larger than the sum of its proper divisors (20881).

22298879 is a wasteful number, since it uses less digits than its factorization.

22298879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20880.

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

The square root of 22298879 is about 4722.1688872805. The cubic root of 22298879 is about 281.4671249126.

The spelling of 22298879 in words is "twenty-two million, two hundred ninety-eight thousand, eight hundred seventy-nine".