206623043 has 24 divisors (see below), whose sum is σ = 242078256. Its totient is φ = 174830400.

The previous prime is 206623033. The next prime is 206623051. The reversal of 206623043 is 340326602.

It is not a de Polignac number, because 206623043 - 2⁶ = 206622979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (206623003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 241805 + ... + 242657.

It is an arithmetic number, because the mean of its divisors is an integer number (10086594).

Almost surely, 2^206623043 is an apocalyptic number.

206623043 is a deficient number, since it is larger than the sum of its proper divisors (35455213).

206623043 is a wasteful number, since it uses less digits than its factorization.

206623043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 963 (or 944 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 26.

The square root of 206623043 is about 14374.3884391650. The cubic root of 206623043 is about 591.1888725175.

Adding to 206623043 its reverse (340326602), we get a palindrome (546949645).

The spelling of 206623043 in words is "two hundred six million, six hundred twenty-three thousand, forty-three".