206889075 has 54 divisors (see below), whose sum is σ = 380514212. Its totient is φ = 107452800.

The previous prime is 206889049. The next prime is 206889077. The reversal of 206889075 is 570988602.

It is not a de Polignac number, because 206889075 - 2⁸ = 206888819 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 206889075.

It is not an unprimeable number, because it can be changed into a prime (206889077) 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 53 ways as a sum of consecutive naturals, for example, 377952 + ... + 378498.

Almost surely, 2^206889075 is an apocalyptic number.

206889075 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

206889075 is a deficient number, since it is larger than the sum of its proper divisors (173625137).

206889075 is a wasteful number, since it uses less digits than its factorization.

206889075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645 (or 596 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 206889075 is about 14383.6391431376. The cubic root of 206889075 is about 591.4424868702.

The spelling of 206889075 in words is "two hundred six million, eight hundred eighty-nine thousand, seventy-five".