22689897 has 4 divisors (see below), whose sum is σ = 30253200. Its totient is φ = 15126596.

The previous prime is 22689893. The next prime is 22689911. The reversal of 22689897 is 79898622.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 22689897 - 2² = 22689893 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22689893) 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, 3781647 + ... + 3781652.

It is an arithmetic number, because the mean of its divisors is an integer number (7563300).

Almost surely, 2^22689897 is an apocalyptic number.

It is an amenable number.

22689897 is a deficient number, since it is larger than the sum of its proper divisors (7563303).

22689897 is an equidigital number, since it uses as much as digits as its factorization.

22689897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7563302.

The product of its digits is 870912, while the sum is 51.

The square root of 22689897 is about 4763.3913339133. The cubic root of 22689897 is about 283.1028065680.

The spelling of 22689897 in words is "twenty-two million, six hundred eighty-nine thousand, eight hundred ninety-seven".