216325634 has 16 divisors (see below), whose sum is σ = 371507136. Its totient is φ = 92545200.

The previous prime is 216325597. The next prime is 216325661. The reversal of 216325634 is 436523612.

216325634 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a self number, because there is not a number n which added to its sum of digits gives 216325634.

It is an unprimeable number.

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, 5537 + ... + 21524.

It is an arithmetic number, because the mean of its divisors is an integer number (23219196).

Almost surely, 2^216325634 is an apocalyptic number.

216325634 is a deficient number, since it is larger than the sum of its proper divisors (155181502).

216325634 is a wasteful number, since it uses less digits than its factorization.

216325634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27641.

The product of its digits is 25920, while the sum is 32.

The square root of 216325634 is about 14708.0125781834. The cubic root of 216325634 is about 600.3013615730.

The spelling of 216325634 in words is "two hundred sixteen million, three hundred twenty-five thousand, six hundred thirty-four".