210828243 has 8 divisors (see below), whose sum is σ = 281188800. Its totient is φ = 140509928.

The previous prime is 210828221. The next prime is 210828253. The reversal of 210828243 is 342828012.

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

It is a cyclic number.

It is not a de Polignac number, because 210828243 - 2⁸ = 210827987 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 210828243.

It is not an unprimeable number, because it can be changed into a prime (210828253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3928 + ... + 20906.

It is an arithmetic number, because the mean of its divisors is an integer number (35148600).

Almost surely, 2^210828243 is an apocalyptic number.

210828243 is a deficient number, since it is larger than the sum of its proper divisors (70360557).

210828243 is a wasteful number, since it uses less digits than its factorization.

210828243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21121.

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 210828243 is about 14519.9257229505. The cubic root of 210828243 is about 595.1726006336.

The spelling of 210828243 in words is "two hundred ten million, eight hundred twenty-eight thousand, two hundred forty-three".