22117684 has 12 divisors (see below), whose sum is σ = 39362400. Its totient is φ = 10871288.

The previous prime is 22117681. The next prime is 22117723. The reversal of 22117684 is 48671122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22117681) 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 3 ways as a sum of consecutive naturals, for example, 46624 + ... + 47095.

It is an arithmetic number, because the mean of its divisors is an integer number (3280200).

Almost surely, 2^22117684 is an apocalyptic number.

It is an amenable number.

22117684 is a deficient number, since it is larger than the sum of its proper divisors (17244716).

22117684 is a wasteful number, since it uses less digits than its factorization.

22117684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93782 (or 93780 counting only the distinct ones).

The product of its digits is 5376, while the sum is 31.

The square root of 22117684 is about 4702.9441842318. The cubic root of 22117684 is about 280.7026739053.

It can be divided in two parts, 22117 and 684, that added together give a square (22801 = 151²).

The spelling of 22117684 in words is "twenty-two million, one hundred seventeen thousand, six hundred eighty-four".