206828793 has 6 divisors (see below), whose sum is σ = 298752714. Its totient is φ = 137885856.

The previous prime is 206828789. The next prime is 206828801. The reversal of 206828793 is 397828602.

It can be written as a sum of positive squares in only one way, i.e., 109056249 + 97772544 = 10443^2 + 9888^2 .

It is not a de Polignac number, because 206828793 - 2² = 206828789 is a prime.

It is a super-2 number, since 2×206828793² = 85556299227673698, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (206828093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11490480 + ... + 11490497.

It is an arithmetic number, because the mean of its divisors is an integer number (49792119).

Almost surely, 2^206828793 is an apocalyptic number.

It is an amenable number.

206828793 is a deficient number, since it is larger than the sum of its proper divisors (91923921).

206828793 is a wasteful number, since it uses less digits than its factorization.

206828793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22980983 (or 22980980 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 206828793 is about 14381.5434846194. The cubic root of 206828793 is about 591.3850377284.

The spelling of 206828793 in words is "two hundred six million, eight hundred twenty-eight thousand, seven hundred ninety-three".