984009 has 16 divisors (see below), whose sum is σ = 1475712. Its totient is φ = 578688.

The previous prime is 984007. The next prime is 984017. The reversal of 984009 is 900489.

984009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 984009 - 2¹ = 984007 is a prime.

It is a super-3 number, since 3×984009³ = 2858370141453338187, which contains 333 as substring.

It is a Curzon number.

It is a plaindrome in base 7.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 984009.

It is not an unprimeable number, because it can be changed into a prime (984007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 349 + ... + 1445.

It is an arithmetic number, because the mean of its divisors is an integer number (92232).

2⁹⁸⁴⁰⁰⁹ is an apocalyptic number.

It is an amenable number.

984009 is a deficient number, since it is larger than the sum of its proper divisors (491703).

984009 is a wasteful number, since it uses less digits than its factorization.

984009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1136.

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 984009 is about 991.9722778384. The cubic root of 984009 is about 99.4640999077.

The spelling of 984009 in words is "nine hundred eighty-four thousand, nine".