206810963 has 12 divisors (see below), whose sum is σ = 217581168. Its totient is φ = 196550640.

The previous prime is 206810941. The next prime is 206810987. The reversal of 206810963 is 369018602.

It is not a de Polignac number, because 206810963 - 2⁸ = 206810707 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206810993) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 87173 + ... + 89513.

It is an arithmetic number, because the mean of its divisors is an integer number (18131764).

Almost surely, 2^206810963 is an apocalyptic number.

206810963 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

206810963 is a deficient number, since it is larger than the sum of its proper divisors (10770205).

206810963 is a wasteful number, since it uses less digits than its factorization.

206810963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2554 (or 2531 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 206810963 is about 14380.9235795202. The cubic root of 206810963 is about 591.3680434823.

It can be divided in two parts, 2068 and 10963, that added together give a palindrome (13031).

The spelling of 206810963 in words is "two hundred six million, eight hundred ten thousand, nine hundred sixty-three".