22997822 has 4 divisors (see below), whose sum is σ = 34496736. Its totient is φ = 11498910.

The previous prime is 22997803. The next prime is 22997851. The reversal of 22997822 is 22879922.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 22997822.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5749454 + ... + 5749457.

It is an arithmetic number, because the mean of its divisors is an integer number (8624184).

Almost surely, 2^22997822 is an apocalyptic number.

22997822 is a deficient number, since it is larger than the sum of its proper divisors (11498914).

22997822 is a wasteful number, since it uses less digits than its factorization.

22997822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11498913.

The product of its digits is 72576, while the sum is 41.

The square root of 22997822 is about 4795.6044457399. The cubic root of 22997822 is about 284.3777209738.

The spelling of 22997822 in words is "twenty-two million, nine hundred ninety-seven thousand, eight hundred twenty-two".