985603 has 4 divisors (see below), whose sum is σ = 1008568. Its totient is φ = 962640.

The previous prime is 985601. The next prime is 985613. The reversal of 985603 is 306589.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 985603 - 2¹ = 985601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (985601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11418 + ... + 11503.

It is an arithmetic number, because the mean of its divisors is an integer number (252142).

2⁹⁸⁵⁶⁰³ is an apocalyptic number.

985603 is a deficient number, since it is larger than the sum of its proper divisors (22965).

985603 is a wasteful number, since it uses less digits than its factorization.

985603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22964.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 985603 is about 992.7754025962. The cubic root of 985603 is about 99.5177783607.

The spelling of 985603 in words is "nine hundred eighty-five thousand, six hundred three".