210868801 has 16 divisors (see below), whose sum is σ = 249133248. Its totient is φ = 175953600.

The previous prime is 210868787. The next prime is 210868811. The reversal of 210868801 is 108868012.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210868801 is a prime.

It is not an unprimeable number, because it can be changed into a prime (210868811) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 21810 + ... + 29956.

It is an arithmetic number, because the mean of its divisors is an integer number (15570828).

Almost surely, 2^210868801 is an apocalyptic number.

It is an amenable number.

210868801 is a deficient number, since it is larger than the sum of its proper divisors (38264447).

210868801 is a wasteful number, since it uses less digits than its factorization.

210868801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8352.

The product of its (nonzero) digits is 6144, while the sum is 34.

The square root of 210868801 is about 14521.3222882766. The cubic root of 210868801 is about 595.2107635512.

The spelling of 210868801 in words is "two hundred ten million, eight hundred sixty-eight thousand, eight hundred one".