943903 has 2 divisors, whose sum is σ = 943904. Its totient is φ = 943902.

The previous prime is 943871. The next prime is 943909. The reversal of 943903 is 309349.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 943903 - 2⁵ = 943871 is a prime.

943903 is a lucky number.

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 (943909) 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, 471951 + 471952.

It is an arithmetic number, because the mean of its divisors is an integer number (471952).

2⁹⁴³⁹⁰³ is an apocalyptic number.

943903 is a deficient number, since it is larger than the sum of its proper divisors (1).

943903 is an equidigital number, since it uses as much as digits as its factorization.

943903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2916, while the sum is 28.

The square root of 943903 is about 971.5467050019. The cubic root of 943903 is about 98.0940025422.

The spelling of 943903 in words is "nine hundred forty-three thousand, nine hundred three".