22198765 has 16 divisors (see below), whose sum is σ = 27216000. Its totient is φ = 17378752.

The previous prime is 22198747. The next prime is 22198769. The reversal of 22198765 is 56789122.

It is a cyclic number.

It is not a de Polignac number, because 22198765 - 2⁵ = 22198733 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22198769) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61656 + ... + 62014.

It is an arithmetic number, because the mean of its divisors is an integer number (1701000).

Almost surely, 2^22198765 is an apocalyptic number.

It is an amenable number.

22198765 is a deficient number, since it is larger than the sum of its proper divisors (5017235).

22198765 is a wasteful number, since it uses less digits than its factorization.

22198765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 596.

The product of its digits is 60480, while the sum is 40.

The square root of 22198765 is about 4711.5565368570. The cubic root of 22198765 is about 281.0452640027.

The spelling of 22198765 in words is "twenty-two million, one hundred ninety-eight thousand, seven hundred sixty-five".