646262003 has 2 divisors, whose sum is σ = 646262004. Its totient is φ = 646262002.

The previous prime is 646261909. The next prime is 646262011. The reversal of 646262003 is 300262646.

646262003 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 646262003 - 2²⁴ = 629484787 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (646262033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 323131001 + 323131002.

It is an arithmetic number, because the mean of its divisors is an integer number (323131002).

Almost surely, 2^646262003 is an apocalyptic number.

646262003 is a deficient number, since it is larger than the sum of its proper divisors (1).

646262003 is an equidigital number, since it uses as much as digits as its factorization.

646262003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 646262003 is about 25421.6837168587. The cubic root of 646262003 is about 864.5753996618.

The spelling of 646262003 in words is "six hundred forty-six million, two hundred sixty-two thousand, three".