217382283 has 12 divisors (see below), whose sum is σ = 314218320. Its totient is φ = 144819216.

The previous prime is 217382279. The next prime is 217382299. The reversal of 217382283 is 382283712.

It is a happy number.

It is not a de Polignac number, because 217382283 - 2² = 217382279 is a prime.

It is not an unprimeable number, because it can be changed into a prime (217382183) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6285 + ... + 21777.

It is an arithmetic number, because the mean of its divisors is an integer number (26184860).

Almost surely, 2^217382283 is an apocalyptic number.

217382283 is a deficient number, since it is larger than the sum of its proper divisors (96836037).

217382283 is a wasteful number, since it uses less digits than its factorization.

217382283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17058 (or 17055 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 217382283 is about 14743.8896835265. The cubic root of 217382283 is about 601.2771711276.

The spelling of 217382283 in words is "two hundred seventeen million, three hundred eighty-two thousand, two hundred eighty-three".