216965852 has 12 divisors (see below), whose sum is σ = 381093216. Its totient is φ = 108082080.

The previous prime is 216965851. The next prime is 216965857. The reversal of 216965852 is 258569612.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216965851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98993 + ... + 101160.

It is an arithmetic number, because the mean of its divisors is an integer number (31757768).

Almost surely, 2^216965852 is an apocalyptic number.

It is an amenable number.

216965852 is a deficient number, since it is larger than the sum of its proper divisors (164127364).

216965852 is a wasteful number, since it uses less digits than its factorization.

216965852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200428 (or 200426 counting only the distinct ones).

The product of its digits is 259200, while the sum is 44.

The square root of 216965852 is about 14729.7607584102. The cubic root of 216965852 is about 600.8929777327.

The spelling of 216965852 in words is "two hundred sixteen million, nine hundred sixty-five thousand, eight hundred fifty-two".