409996903 has 2 divisors, whose sum is σ = 409996904. Its totient is φ = 409996902.

The previous prime is 409996891. The next prime is 409996907. The reversal of 409996903 is 309699904.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 409996903 - 2¹⁷ = 409865831 is a prime.

It is a zygodrome in base 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (409996907) 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, 204998451 + 204998452.

It is an arithmetic number, because the mean of its divisors is an integer number (204998452).

Almost surely, 2^409996903 is an apocalyptic number.

409996903 is a deficient number, since it is larger than the sum of its proper divisors (1).

409996903 is an equidigital number, since it uses as much as digits as its factorization.

409996903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 472392, while the sum is 49.

The square root of 409996903 is about 20248.3802562081. The cubic root of 409996903 is about 742.8940136127.

The spelling of 409996903 in words is "four hundred nine million, nine hundred ninety-six thousand, nine hundred three".