217117014 has 16 divisors (see below), whose sum is σ = 434394480. Its totient is φ = 72345600.

The previous prime is 217117007. The next prime is 217117057. The reversal of 217117014 is 410711712.

217117014 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17814 + ... + 27414.

It is an arithmetic number, because the mean of its divisors is an integer number (27149655).

Almost surely, 2^217117014 is an apocalyptic number.

217117014 is an abundant number, since it is smaller than the sum of its proper divisors (217277466).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

217117014 is a wasteful number, since it uses less digits than its factorization.

217117014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13375.

The product of its (nonzero) digits is 392, while the sum is 24.

The square root of 217117014 is about 14734.8910413345. The cubic root of 217117014 is about 601.0324944617.

Adding to 217117014 its reverse (410711712), we get a palindrome (627828726).

The spelling of 217117014 in words is "two hundred seventeen million, one hundred seventeen thousand, fourteen".