22727297 has 4 divisors (see below), whose sum is σ = 22818096. Its totient is φ = 22636500.

The previous prime is 22727293. The next prime is 22727311. The reversal of 22727297 is 79272722.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22727297 - 2² = 22727293 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22727297.

It is not an unprimeable number, because it can be changed into a prime (22727291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45023 + ... + 45524.

It is an arithmetic number, because the mean of its divisors is an integer number (5704524).

Almost surely, 2^22727297 is an apocalyptic number.

It is an amenable number.

22727297 is a deficient number, since it is larger than the sum of its proper divisors (90799).

22727297 is an equidigital number, since it uses as much as digits as its factorization.

22727297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90798.

The product of its digits is 49392, while the sum is 38.

The square root of 22727297 is about 4767.3154919724. The cubic root of 22727297 is about 283.2582683112.

The spelling of 22727297 in words is "twenty-two million, seven hundred twenty-seven thousand, two hundred ninety-seven".