216872853 has 8 divisors (see below), whose sum is σ = 293125248. Its totient is φ = 142601184.

The previous prime is 216872839. The next prime is 216872857. The reversal of 216872853 is 358278612.

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

It is not a de Polignac number, because 216872853 - 2¹⁰ = 216871829 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216872857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 494925 + ... + 495362.

It is an arithmetic number, because the mean of its divisors is an integer number (36640656).

Almost surely, 2^216872853 is an apocalyptic number.

It is an amenable number.

216872853 is a deficient number, since it is larger than the sum of its proper divisors (76252395).

216872853 is an equidigital number, since it uses as much as digits as its factorization.

216872853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 990363.

The product of its digits is 161280, while the sum is 42.

The square root of 216872853 is about 14726.6035799162. The cubic root of 216872853 is about 600.8071110217.

The spelling of 216872853 in words is "two hundred sixteen million, eight hundred seventy-two thousand, eight hundred fifty-three".