216860882 has 32 divisors (see below), whose sum is σ = 391053312. Its totient is φ = 88182864.

The previous prime is 216860873. The next prime is 216860893. The reversal of 216860882 is 288068612.

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 15 ways as a sum of consecutive naturals, for example, 38243 + ... + 43545.

It is an arithmetic number, because the mean of its divisors is an integer number (12220416).

Almost surely, 2^216860882 is an apocalyptic number.

216860882 is a deficient number, since it is larger than the sum of its proper divisors (174192430).

216860882 is a wasteful number, since it uses less digits than its factorization.

216860882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5462.

The product of its (nonzero) digits is 73728, while the sum is 41.

The square root of 216860882 is about 14726.1971330008. The cubic root of 216860882 is about 600.7960563198.

The spelling of 216860882 in words is "two hundred sixteen million, eight hundred sixty thousand, eight hundred eighty-two".