22133727 has 72 divisors (see below), whose sum is σ = 43006080. Its totient is φ = 10627200.

The previous prime is 22133723. The next prime is 22133737. The reversal of 22133727 is 72733122.

It is a happy number.

It is not a de Polignac number, because 22133727 - 2² = 22133723 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 22133727.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22133723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 539827 + ... + 539867.

Almost surely, 2^22133727 is an apocalyptic number.

22133727 is a deficient number, since it is larger than the sum of its proper divisors (20872353).

22133727 is a wasteful number, since it uses less digits than its factorization.

22133727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125 (or 81 counting only the distinct ones).

The product of its digits is 3528, while the sum is 27.

The square root of 22133727 is about 4704.6495087307. The cubic root of 22133727 is about 280.7705264679.

Adding to 22133727 its reverse (72733122), we get a palindrome (94866849).

The spelling of 22133727 in words is "twenty-two million, one hundred thirty-three thousand, seven hundred twenty-seven".