206682813 has 8 divisors (see below), whose sum is σ = 306196800. Its totient is φ = 137788524.

The previous prime is 206682769. The next prime is 206682871. The reversal of 206682813 is 318286602.

It is not a de Polignac number, because 206682813 - 2⁸ = 206682557 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206682013) 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, 3827433 + ... + 3827486.

It is an arithmetic number, because the mean of its divisors is an integer number (38274600).

Almost surely, 2^206682813 is an apocalyptic number.

It is an amenable number.

206682813 is a deficient number, since it is larger than the sum of its proper divisors (99513987).

206682813 is an equidigital number, since it uses as much as digits as its factorization.

206682813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7654928 (or 7654922 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 206682813 is about 14376.4673338063. The cubic root of 206682813 is about 591.2458715688.

The spelling of 206682813 in words is "two hundred six million, six hundred eighty-two thousand, eight hundred thirteen".