22035897 has 24 divisors (see below), whose sum is σ = 34571264. Its totient is φ = 13444704.

The previous prime is 22035887. The next prime is 22035913. The reversal of 22035897 is 79853022.

It is a happy number.

It is not a de Polignac number, because 22035897 - 2¹⁴ = 22019513 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (22035857) 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 23 ways as a sum of consecutive naturals, for example, 14118 + ... + 15600.

Almost surely, 2^22035897 is an apocalyptic number.

It is an amenable number.

22035897 is a deficient number, since it is larger than the sum of its proper divisors (12535367).

22035897 is a wasteful number, since it uses less digits than its factorization.

22035897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1629 (or 1626 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 22035897 is about 4694.2408331912. The cubic root of 22035897 is about 280.3562514715.

It can be divided in two parts, 2203 and 5897, that added together give a square (8100 = 90²).

The spelling of 22035897 in words is "twenty-two million, thirty-five thousand, eight hundred ninety-seven".