22269897 has 20 divisors (see below), whose sum is σ = 35828100. Its totient is φ = 13703904.

The previous prime is 22269889. The next prime is 22269901. The reversal of 22269897 is 79896222.

It can be written as a sum of positive squares in 2 ways, for example, as 2742336 + 19527561 = 1656^2 + 4419^2 .

It is not a de Polignac number, because 22269897 - 2³ = 22269889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22269817) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 9522 + ... + 11627.

It is an arithmetic number, because the mean of its divisors is an integer number (1791405).

Almost surely, 2^22269897 is an apocalyptic number.

22269897 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

22269897 is a deficient number, since it is larger than the sum of its proper divisors (13558203).

22269897 is a wasteful number, since it uses less digits than its factorization.

22269897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21174 (or 21165 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 22269897 is about 4719.0991725116. The cubic root of 22269897 is about 281.3451304859.

The spelling of 22269897 in words is "twenty-two million, two hundred sixty-nine thousand, eight hundred ninety-seven".