206975065 has 32 divisors (see below), whose sum is σ = 281428992. Its totient is φ = 144768000.

The previous prime is 206975063. The next prime is 206975099. The reversal of 206975065 is 560579602.

It is not a de Polignac number, because 206975065 - 2¹ = 206975063 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (206975063) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 397005 + ... + 397525.

It is an arithmetic number, because the mean of its divisors is an integer number (8794656).

Almost surely, 2^206975065 is an apocalyptic number.

It is an amenable number.

206975065 is a deficient number, since it is larger than the sum of its proper divisors (74453927).

206975065 is a wasteful number, since it uses less digits than its factorization.

206975065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 801.

The product of its (nonzero) digits is 113400, while the sum is 40.

The square root of 206975065 is about 14386.6279926882. The cubic root of 206975065 is about 591.5244165950.

The spelling of 206975065 in words is "two hundred six million, nine hundred seventy-five thousand, sixty-five".