216717752 has 16 divisors (see below), whose sum is σ = 414992160. Its totient is φ = 106053184.

The previous prime is 216717733. The next prime is 216717763. The reversal of 216717752 is 257717612.

216717752 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 287813 + ... + 288564.

It is an arithmetic number, because the mean of its divisors is an integer number (25937010).

Almost surely, 2^216717752 is an apocalyptic number.

It is an amenable number.

216717752 is a deficient number, since it is larger than the sum of its proper divisors (198274408).

216717752 is a wasteful number, since it uses less digits than its factorization.

216717752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576430 (or 576426 counting only the distinct ones).

The product of its digits is 41160, while the sum is 38.

The square root of 216717752 is about 14721.3366240977. The cubic root of 216717752 is about 600.6638504187.

The spelling of 216717752 in words is "two hundred sixteen million, seven hundred seventeen thousand, seven hundred fifty-two".