22989897 has 12 divisors (see below), whose sum is σ = 37951680. Its totient is φ = 13137048.

The previous prime is 22989859. The next prime is 22989919. The reversal of 22989897 is 79898922.

It is not a de Polignac number, because 22989897 - 2⁸ = 22989641 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22989847) 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, 182397 + ... + 182522.

It is an arithmetic number, because the mean of its divisors is an integer number (3162640).

Almost surely, 2^22989897 is an apocalyptic number.

It is an amenable number.

22989897 is a deficient number, since it is larger than the sum of its proper divisors (14961783).

22989897 is a wasteful number, since it uses less digits than its factorization.

22989897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364932 (or 364929 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 54.

The square root of 22989897 is about 4794.7780970552. The cubic root of 22989897 is about 284.3450519040.

The spelling of 22989897 in words is "twenty-two million, nine hundred eighty-nine thousand, eight hundred ninety-seven".