985001 has 4 divisors (see below), whose sum is σ = 1007952. Its totient is φ = 962052.

The previous prime is 984959. The next prime is 985003. The reversal of 985001 is 100589.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-985001 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 985001.

It is not an unprimeable number, because it can be changed into a prime (985003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11411 + ... + 11496.

It is an arithmetic number, because the mean of its divisors is an integer number (251988).

2⁹⁸⁵⁰⁰¹ is an apocalyptic number.

It is an amenable number.

985001 is a deficient number, since it is larger than the sum of its proper divisors (22951).

985001 is a wasteful number, since it uses less digits than its factorization.

985001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22950.

The product of its (nonzero) digits is 360, while the sum is 23.

The square root of 985001 is about 992.4721658566. The cubic root of 985001 is about 99.4975126269.

The spelling of 985001 in words is "nine hundred eighty-five thousand, one".