406803317 has 2 divisors, whose sum is σ = 406803318. Its totient is φ = 406803316.

The previous prime is 406803269. The next prime is 406803343. The reversal of 406803317 is 713308604.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 270240721 + 136562596 = 16439^2 + 11686^2 .

It is a cyclic number.

It is not a de Polignac number, because 406803317 - 2¹⁸ = 406541173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (406803347) 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, 203401658 + 203401659.

It is an arithmetic number, because the mean of its divisors is an integer number (203401659).

Almost surely, 2^406803317 is an apocalyptic number.

It is an amenable number.

406803317 is a deficient number, since it is larger than the sum of its proper divisors (1).

406803317 is an equidigital number, since it uses as much as digits as its factorization.

406803317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 406803317 is about 20169.3658055974. The cubic root of 406803317 is about 740.9601105987.

The spelling of 406803317 in words is "four hundred six million, eight hundred three thousand, three hundred seventeen".