22842997 has 6 divisors (see below), whose sum is σ = 24108918. Its totient is φ = 21640392.

The previous prime is 22842977. The next prime is 22843013. The reversal of 22842997 is 79924822.

It can be written as a sum of positive squares in only one way, i.e., 12895281 + 9947716 = 3591^2 + 3154^2 .

It is not a de Polignac number, because 22842997 - 2¹¹ = 22840949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22842977) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 31278 + ... + 31999.

It is an arithmetic number, because the mean of its divisors is an integer number (4018153).

Almost surely, 2^22842997 is an apocalyptic number.

It is an amenable number.

22842997 is a deficient number, since it is larger than the sum of its proper divisors (1265921).

22842997 is an equidigital number, since it uses as much as digits as its factorization.

22842997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63315 (or 63296 counting only the distinct ones).

The product of its digits is 145152, while the sum is 43.

The square root of 22842997 is about 4779.4347992205. The cubic root of 22842997 is about 283.7381248305.

The spelling of 22842997 in words is "twenty-two million, eight hundred forty-two thousand, nine hundred ninety-seven".