210968 has 8 divisors (see below), whose sum is σ = 395580. Its totient is φ = 105480.

The previous prime is 210967. The next prime is 211007. The reversal of 210968 is 869012.

It is a tau number, because it is divible by the number of its divisors (8).

It is a plaindrome in base 11.

It is a zygodrome in base 2.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 210968.

It is not an unprimeable number, because it can be changed into a prime (210961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13178 + ... + 13193.

2²¹⁰⁹⁶⁸ is an apocalyptic number.

It is an amenable number.

210968 is a deficient number, since it is larger than the sum of its proper divisors (184612).

210968 is a wasteful number, since it uses less digits than its factorization.

210968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26377 (or 26373 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 210968 is about 459.3125297660. The cubic root of 210968 is about 59.5304083910.

The spelling of 210968 in words is "two hundred ten thousand, nine hundred sixty-eight".