22881897 has 12 divisors (see below), whose sum is σ = 33096960. Its totient is φ = 15233688.

The previous prime is 22881863. The next prime is 22881917. The reversal of 22881897 is 79818822.

It is a happy number.

It is not a de Polignac number, because 22881897 - 2⁷ = 22881769 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22881097) 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 11 ways as a sum of consecutive naturals, for example, 8128 + ... + 10574.

It is an arithmetic number, because the mean of its divisors is an integer number (2758080).

Almost surely, 2^22881897 is an apocalyptic number.

It is an amenable number.

22881897 is a deficient number, since it is larger than the sum of its proper divisors (10215063).

22881897 is a wasteful number, since it uses less digits than its factorization.

22881897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3492 (or 3489 counting only the distinct ones).

The product of its digits is 129024, while the sum is 45.

The square root of 22881897 is about 4783.5025870172. The cubic root of 22881897 is about 283.8990954432.

The spelling of 22881897 in words is "twenty-two million, eight hundred eighty-one thousand, eight hundred ninety-seven".