206963 has 4 divisors (see below), whose sum is σ = 210120. Its totient is φ = 203808.

The previous prime is 206953. The next prime is 206993. The reversal of 206963 is 369602.

206963 is nontrivially palindromic in base 7.

206963 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 206963 - 2¹⁴ = 190579 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (206923) 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, 1478 + ... + 1611.

It is an arithmetic number, because the mean of its divisors is an integer number (52530).

2²⁰⁶⁹⁶³ is an apocalyptic number.

206963 is a deficient number, since it is larger than the sum of its proper divisors (3157).

206963 is an equidigital number, since it uses as much as digits as its factorization.

206963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3156.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 206963 is about 454.9318630301. The cubic root of 206963 is about 59.1512922649.

The spelling of 206963 in words is "two hundred six thousand, nine hundred sixty-three".