210872 has 16 divisors (see below), whose sum is σ = 405240. Its totient is φ = 102816.

The previous prime is 210869. The next prime is 210901. The reversal of 210872 is 278012.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38 + ... + 650.

2²¹⁰⁸⁷² is an apocalyptic number.

It is an amenable number.

210872 is a deficient number, since it is larger than the sum of its proper divisors (194368).

210872 is a wasteful number, since it uses less digits than its factorization.

210872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 662 (or 658 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 210872 is about 459.2080138674. The cubic root of 210872 is about 59.5213773432.

Adding to 210872 its reverse (278012), we get a palindrome (488884).

The spelling of 210872 in words is "two hundred ten thousand, eight hundred seventy-two".