985903 has 2 divisors, whose sum is σ = 985904. Its totient is φ = 985902.

The previous prime is 985877. The next prime is 985921. The reversal of 985903 is 309589.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 985903 - 2⁵ = 985871 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (985973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 492951 + 492952.

It is an arithmetic number, because the mean of its divisors is an integer number (492952).

2⁹⁸⁵⁹⁰³ is an apocalyptic number.

985903 is a deficient number, since it is larger than the sum of its proper divisors (1).

985903 is an equidigital number, since it uses as much as digits as its factorization.

985903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9720, while the sum is 34.

The square root of 985903 is about 992.9264826763. The cubic root of 985903 is about 99.5278744829.

The spelling of 985903 in words is "nine hundred eighty-five thousand, nine hundred three".