216472 has 8 divisors (see below), whose sum is σ = 405900. Its totient is φ = 108232.

The previous prime is 216451. The next prime is 216481. The reversal of 216472 is 274612.

216472 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a d-powerful number, because it can be written as 2⁹ + 1 + 4⁸ + 6 + 7⁶ + 2¹⁵ .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13522 + ... + 13537.

2²¹⁶⁴⁷² is an apocalyptic number.

It is an amenable number.

216472 is a deficient number, since it is larger than the sum of its proper divisors (189428).

216472 is a wasteful number, since it uses less digits than its factorization.

216472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27065 (or 27061 counting only the distinct ones).

The product of its digits is 672, while the sum is 22.

The square root of 216472 is about 465.2655155930. The cubic root of 216472 is about 60.0436719087.

The spelling of 216472 in words is "two hundred sixteen thousand, four hundred seventy-two".