217006316 has 12 divisors (see below), whose sum is σ = 381670800. Its totient is φ = 107957520.

The previous prime is 217006267. The next prime is 217006331. The reversal of 217006316 is 613600712.

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, 135515 + ... + 137106.

It is an arithmetic number, because the mean of its divisors is an integer number (31805900).

Almost surely, 2^217006316 is an apocalyptic number.

It is an amenable number.

217006316 is a deficient number, since it is larger than the sum of its proper divisors (164664484).

217006316 is a wasteful number, since it uses less digits than its factorization.

217006316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272824 (or 272822 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 217006316 is about 14731.1342401052. The cubic root of 217006316 is about 600.9303308028.

The spelling of 217006316 in words is "two hundred seventeen million, six thousand, three hundred sixteen".