216086894 has 8 divisors (see below), whose sum is σ = 324330240. Its totient is φ = 107976816.

The previous prime is 216086887. The next prime is 216086921. The reversal of 216086894 is 498680612.

It is a happy number.

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

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, 29159 + ... + 35810.

It is an arithmetic number, because the mean of its divisors is an integer number (40541280).

Almost surely, 2^216086894 is an apocalyptic number.

216086894 is a deficient number, since it is larger than the sum of its proper divisors (108243346).

216086894 is a wasteful number, since it uses less digits than its factorization.

216086894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66634.

The product of its (nonzero) digits is 165888, while the sum is 44.

The square root of 216086894 is about 14699.8943533619. The cubic root of 216086894 is about 600.0804466208.

The spelling of 216086894 in words is "two hundred sixteen million, eighty-six thousand, eight hundred ninety-four".