216927 has 6 divisors (see below), whose sum is σ = 313352. Its totient is φ = 144612.

The previous prime is 216919. The next prime is 216947. The reversal of 216927 is 729612.

216927 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 216927 - 2³ = 216919 is a prime.

It is a super-3 number, since 3×216927³ = 30624011933369949, which contains 333 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

216927 is strictly pandigital in base 7.

It is a self number, because there is not a number n which added to its sum of digits gives 216927.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216917) 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 5 ways as a sum of consecutive naturals, for example, 12043 + ... + 12060.

2²¹⁶⁹²⁷ is an apocalyptic number.

216927 is a deficient number, since it is larger than the sum of its proper divisors (96425).

216927 is a wasteful number, since it uses less digits than its factorization.

216927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24109 (or 24106 counting only the distinct ones).

The product of its digits is 1512, while the sum is 27.

The square root of 216927 is about 465.7542270340. The cubic root of 216927 is about 60.0857108359.

The spelling of 216927 in words is "two hundred sixteen thousand, nine hundred twenty-seven".