205044823 has 2 divisors, whose sum is σ = 205044824. Its totient is φ = 205044822.

The previous prime is 205044817. The next prime is 205044859. The reversal of 205044823 is 328440502.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 205044823 - 2⁹ = 205044311 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 205044791 and 205044800.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (205044023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102522411 + 102522412.

It is an arithmetic number, because the mean of its divisors is an integer number (102522412).

Almost surely, 2^205044823 is an apocalyptic number.

205044823 is a deficient number, since it is larger than the sum of its proper divisors (1).

205044823 is an equidigital number, since it uses as much as digits as its factorization.

205044823 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 205044823 is about 14319.3862647810. The cubic root of 205044823 is about 589.6798253250.

The spelling of 205044823 in words is "two hundred five million, forty-four thousand, eight hundred twenty-three".