206328839 has 4 divisors (see below), whose sum is σ = 212984640. Its totient is φ = 199673040.

The previous prime is 206328833. The next prime is 206328869. The reversal of 206328839 is 938823602.

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 206328839 - 2⁸ = 206328583 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 206328796 and 206328805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206328833) 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 3 ways as a sum of consecutive naturals, for example, 3327854 + ... + 3327915.

It is an arithmetic number, because the mean of its divisors is an integer number (53246160).

Almost surely, 2^206328839 is an apocalyptic number.

206328839 is a deficient number, since it is larger than the sum of its proper divisors (6655801).

206328839 is an equidigital number, since it uses as much as digits as its factorization.

206328839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6655800.

The product of its (nonzero) digits is 124416, while the sum is 41.

The square root of 206328839 is about 14364.1511757570. The cubic root of 206328839 is about 590.9081475395.

The spelling of 206328839 in words is "two hundred six million, three hundred twenty-eight thousand, eight hundred thirty-nine".