22727213 has 16 divisors (see below), whose sum is σ = 24624000. Its totient is φ = 20930112.

The previous prime is 22727203. The next prime is 22727219. The reversal of 22727213 is 31272722.

It is not a de Polignac number, because 22727213 - 2⁶ = 22727149 is a prime.

It is a super-3 number, since 3×22727213³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22727219) 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 15 ways as a sum of consecutive naturals, for example, 63128 + ... + 63486.

It is an arithmetic number, because the mean of its divisors is an integer number (1539000).

Almost surely, 2^22727213 is an apocalyptic number.

It is an amenable number.

22727213 is a deficient number, since it is larger than the sum of its proper divisors (1896787).

22727213 is a wasteful number, since it uses less digits than its factorization.

22727213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484.

The product of its digits is 2352, while the sum is 26.

The square root of 22727213 is about 4767.3066819746. The cubic root of 22727213 is about 283.2579193370.

Adding to 22727213 its reverse (31272722), we get a palindrome (53999935).

The spelling of 22727213 in words is "twenty-two million, seven hundred twenty-seven thousand, two hundred thirteen".