22689899 has 4 divisors (see below), whose sum is σ = 22699440. Its totient is φ = 22680360.

The previous prime is 22689893. The next prime is 22689911. The reversal of 22689899 is 99898622.

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: 99898622 = 2 ⋅49949311.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22689899 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22689899.

It is not an unprimeable number, because it can be changed into a prime (22689893) 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, 2009 + ... + 7029.

It is an arithmetic number, because the mean of its divisors is an integer number (5674860).

Almost surely, 2^22689899 is an apocalyptic number.

22689899 is a deficient number, since it is larger than the sum of its proper divisors (9541).

22689899 is an equidigital number, since it uses as much as digits as its factorization.

22689899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9540.

The product of its digits is 1119744, while the sum is 53.

The square root of 22689899 is about 4763.3915438477. The cubic root of 22689899 is about 283.1028148860.

It can be divided in two parts, 2268 and 9899, that added together give a cube (12167 = 23³).

The spelling of 22689899 in words is "twenty-two million, six hundred eighty-nine thousand, eight hundred ninety-nine".