216352706 has 8 divisors (see below), whose sum is σ = 327742524. Its totient is φ = 107105200.

The previous prime is 216352699. The next prime is 216352711. The reversal of 216352706 is 607253612.

216352706 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 161518681 + 54834025 = 12709^2 + 7405^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 535325 + ... + 535728.

Almost surely, 2^216352706 is an apocalyptic number.

216352706 is a deficient number, since it is larger than the sum of its proper divisors (111389818).

216352706 is a wasteful number, since it uses less digits than its factorization.

216352706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071156.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 216352706 is about 14708.9328640796. The cubic root of 216352706 is about 600.3264020336.

The spelling of 216352706 in words is "two hundred sixteen million, three hundred fifty-two thousand, seven hundred six".