206876065 has 32 divisors (see below), whose sum is σ = 279903744. Its totient is φ = 145463040.

The previous prime is 206876057. The next prime is 206876069. The reversal of 206876065 is 560678602.

It is not a de Polignac number, because 206876065 - 2³ = 206876057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (206876069) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 563512 + ... + 563878.

It is an arithmetic number, because the mean of its divisors is an integer number (8746992).

Almost surely, 2^206876065 is an apocalyptic number.

It is an amenable number.

206876065 is a deficient number, since it is larger than the sum of its proper divisors (73027679).

206876065 is a wasteful number, since it uses less digits than its factorization.

206876065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 697.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 206876065 is about 14383.1868860833. The cubic root of 206876065 is about 591.4300891992.

The spelling of 206876065 in words is "two hundred six million, eight hundred seventy-six thousand, sixty-five".