216846885 has 16 divisors (see below), whose sum is σ = 347203584. Its totient is φ = 115568832.

The previous prime is 216846859. The next prime is 216846913. The reversal of 216846885 is 588648612.

It is a happy number.

216846885 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 216846885 - 2⁷ = 216846757 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20599 + ... + 29291.

It is an arithmetic number, because the mean of its divisors is an integer number (21700224).

Almost surely, 2^216846885 is an apocalyptic number.

It is an amenable number.

216846885 is a deficient number, since it is larger than the sum of its proper divisors (130356699).

216846885 is a wasteful number, since it uses less digits than its factorization.

216846885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10364.

The product of its digits is 737280, while the sum is 48.

The square root of 216846885 is about 14725.7218838331. The cubic root of 216846885 is about 600.7831301783.

The spelling of 216846885 in words is "two hundred sixteen million, eight hundred forty-six thousand, eight hundred eighty-five".