216875207 has 4 divisors (see below), whose sum is σ = 216949656. Its totient is φ = 216800760.

The previous prime is 216875159. The next prime is 216875213. The reversal of 216875207 is 702578612.

216875207 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 216875207 - 2⁶ = 216875143 is a prime.

It is a super-2 number, since 2×216875207² = 94069710822585698, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216875227) 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, 32669 + ... + 38742.

It is an arithmetic number, because the mean of its divisors is an integer number (54237414).

Almost surely, 2^216875207 is an apocalyptic number.

216875207 is a deficient number, since it is larger than the sum of its proper divisors (74449).

216875207 is an equidigital number, since it uses as much as digits as its factorization.

216875207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74448.

The product of its (nonzero) digits is 47040, while the sum is 38.

The square root of 216875207 is about 14726.6835030838. The cubic root of 216875207 is about 600.8092847913.

The spelling of 216875207 in words is "two hundred sixteen million, eight hundred seventy-five thousand, two hundred seven".