22797247 has 6 divisors (see below), whose sum is σ = 25058264. Its totient is φ = 20724660.

The previous prime is 22797193. The next prime is 22797263. The reversal of 22797247 is 74279722.

It is a de Polignac number, because none of the positive numbers 2^k-22797247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22797287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 94083 + ... + 94324.

Almost surely, 2^22797247 is an apocalyptic number.

22797247 is a deficient number, since it is larger than the sum of its proper divisors (2261017).

22797247 is a wasteful number, since it uses less digits than its factorization.

22797247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188429 (or 188418 counting only the distinct ones).

The product of its digits is 98784, while the sum is 40.

The square root of 22797247 is about 4774.6462696204. The cubic root of 22797247 is about 283.5485744692.

The spelling of 22797247 in words is "twenty-two million, seven hundred ninety-seven thousand, two hundred forty-seven".