406803259 has 2 divisors, whose sum is σ = 406803260. Its totient is φ = 406803258.

The previous prime is 406803209. The next prime is 406803269. The reversal of 406803259 is 952308604.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 406803259 - 2¹⁵ = 406770491 is a prime.

It is not a weakly prime, because it can be changed into another prime (406803209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203401629 + 203401630.

It is an arithmetic number, because the mean of its divisors is an integer number (203401630).

Almost surely, 2^406803259 is an apocalyptic number.

406803259 is a deficient number, since it is larger than the sum of its proper divisors (1).

406803259 is an equidigital number, since it uses as much as digits as its factorization.

406803259 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 406803259 is about 20169.3643677732. The cubic root of 406803259 is about 740.9600753845.

The spelling of 406803259 in words is "four hundred six million, eight hundred three thousand, two hundred fifty-nine".