206906826 has 32 divisors (see below), whose sum is σ = 473356800. Its totient is φ = 59062896.

The previous prime is 206906807. The next prime is 206906837. The reversal of 206906826 is 628609602.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86985 + ... + 89331.

It is an arithmetic number, because the mean of its divisors is an integer number (14792400).

Almost surely, 2^206906826 is an apocalyptic number.

206906826 is an abundant number, since it is smaller than the sum of its proper divisors (266449974).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

206906826 is a wasteful number, since it uses less digits than its factorization.

206906826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4458.

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 206906826 is about 14384.2561851491. The cubic root of 206906826 is about 591.4594015628.

The spelling of 206906826 in words is "two hundred six million, nine hundred six thousand, eight hundred twenty-six".