406663303 has 2 divisors, whose sum is σ = 406663304. Its totient is φ = 406663302.

The previous prime is 406663291. The next prime is 406663319. The reversal of 406663303 is 303366604.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-406663303 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (406663343) 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 as a sum of consecutive naturals, namely, 203331651 + 203331652.

It is an arithmetic number, because the mean of its divisors is an integer number (203331652).

Almost surely, 2^406663303 is an apocalyptic number.

406663303 is a deficient number, since it is larger than the sum of its proper divisors (1).

406663303 is an equidigital number, since it uses as much as digits as its factorization.

406663303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 31.

The square root of 406663303 is about 20165.8945499574. The cubic root of 406663303 is about 740.8750926967.

The spelling of 406663303 in words is "four hundred six million, six hundred sixty-three thousand, three hundred three".