216217093 has 8 divisors (see below), whose sum is σ = 227797920. Its totient is φ = 204656400.

The previous prime is 216217039. The next prime is 216217117. The reversal of 216217093 is 390712612.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 216217093 - 2²⁵ = 182662661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216217003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20346 + ... + 29092.

It is an arithmetic number, because the mean of its divisors is an integer number (28474740).

Almost surely, 2^216217093 is an apocalyptic number.

It is an amenable number.

216217093 is a deficient number, since it is larger than the sum of its proper divisors (11580827).

216217093 is a wasteful number, since it uses less digits than its factorization.

216217093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10067.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 216217093 is about 14704.3222557179. The cubic root of 216217093 is about 600.2009447315.

The spelling of 216217093 in words is "two hundred sixteen million, two hundred seventeen thousand, ninety-three".