217299116 has 6 divisors (see below), whose sum is σ = 380273460. Its totient is φ = 108649556.

The previous prime is 217299097. The next prime is 217299133. The reversal of 217299116 is 611992712.

217299116 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 217299116.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27162386 + ... + 27162393.

It is an arithmetic number, because the mean of its divisors is an integer number (63378910).

Almost surely, 2^217299116 is an apocalyptic number.

It is an amenable number.

217299116 is a deficient number, since it is larger than the sum of its proper divisors (162974344).

217299116 is a wasteful number, since it uses less digits than its factorization.

217299116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54324783 (or 54324781 counting only the distinct ones).

The product of its digits is 13608, while the sum is 38.

The square root of 217299116 is about 14741.0690250063. The cubic root of 217299116 is about 601.2004816562.

The spelling of 217299116 in words is "two hundred seventeen million, two hundred ninety-nine thousand, one hundred sixteen".