21716114 has 48 divisors (see below), whose sum is σ = 40001688. Its totient is φ = 8805888.

The previous prime is 21716087. The next prime is 21716137. The reversal of 21716114 is 41161712.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 18774889 + 2941225 = 4333^2 + 1715^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 21716114.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 192122 + ... + 192234.

Almost surely, 2^21716114 is an apocalyptic number.

21716114 is a deficient number, since it is larger than the sum of its proper divisors (18285574).

21716114 is a wasteful number, since it uses less digits than its factorization.

21716114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219 (or 212 counting only the distinct ones).

The product of its digits is 336, while the sum is 23.

The square root of 21716114 is about 4660.0551498882. The cubic root of 21716114 is about 278.9934694411.

Adding to 21716114 its reverse (41161712), we get a palindrome (62877826).

The spelling of 21716114 in words is "twenty-one million, seven hundred sixteen thousand, one hundred fourteen".