22797887 has 12 divisors (see below), whose sum is σ = 26897616. Its totient is φ = 19262880.

The previous prime is 22797881. The next prime is 22797893. The reversal of 22797887 is 78879722.

It is an interprime number because it is at equal distance from previous prime (22797881) and next prime (22797893).

It is not a de Polignac number, because 22797887 - 2¹⁴ = 22781503 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 (22797881) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 203 + ... + 6755.

It is an arithmetic number, because the mean of its divisors is an integer number (2241468).

Almost surely, 2^22797887 is an apocalyptic number.

22797887 is a deficient number, since it is larger than the sum of its proper divisors (4099729).

22797887 is an equidigital number, since it uses as much as digits as its factorization.

22797887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6638 (or 6631 counting only the distinct ones).

The product of its digits is 790272, while the sum is 50.

The square root of 22797887 is about 4774.7132898217. The cubic root of 22797887 is about 283.5512278508.

The spelling of 22797887 in words is "twenty-two million, seven hundred ninety-seven thousand, eight hundred eighty-seven".