22788117 has 24 divisors (see below), whose sum is σ = 36062208. Its totient is φ = 13752000.

The previous prime is 22788071. The next prime is 22788127. The reversal of 22788117 is 71188722.

It is a happy number.

It is not a de Polignac number, because 22788117 - 2¹⁴ = 22771733 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22788127) 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, 37617 + ... + 38217.

It is an arithmetic number, because the mean of its divisors is an integer number (1502592).

Almost surely, 2^22788117 is an apocalyptic number.

It is an amenable number.

22788117 is a deficient number, since it is larger than the sum of its proper divisors (13274091).

22788117 is a wasteful number, since it uses less digits than its factorization.

22788117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1001 (or 998 counting only the distinct ones).

The product of its digits is 12544, while the sum is 36.

The square root of 22788117 is about 4773.6900821063. The cubic root of 22788117 is about 283.5107169133.

The spelling of 22788117 in words is "twenty-two million, seven hundred eighty-eight thousand, one hundred seventeen".