216484712 has 16 divisors (see below), whose sum is σ = 411470340. Its totient is φ = 106759296.

The previous prime is 216484711. The next prime is 216484759. The reversal of 216484712 is 217484612.

It can be written as a sum of positive squares in 2 ways, for example, as 208109476 + 8375236 = 14426^2 + 2894^2 .

It is not an unprimeable number, because it can be changed into a prime (216484711) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 184763 + ... + 185930.

Almost surely, 2^216484712 is an apocalyptic number.

It is an amenable number.

216484712 is a deficient number, since it is larger than the sum of its proper divisors (194985628).

216484712 is a wasteful number, since it uses less digits than its factorization.

216484712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370772 (or 370768 counting only the distinct ones).

The product of its digits is 21504, while the sum is 35.

The square root of 216484712 is about 14713.4194530028. The cubic root of 216484712 is about 600.4484721118.

The spelling of 216484712 in words is "two hundred sixteen million, four hundred eighty-four thousand, seven hundred twelve".