984409 has 8 divisors (see below), whose sum is σ = 1045440. Its totient is φ = 924336.

The previous prime is 984407. The next prime is 984413. The reversal of 984409 is 904489.

984409 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 984409 - 2¹ = 984407 is a prime.

It is a super-2 number, since 2×984409² = 1938122158562, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 7.

It is not an unprimeable number, because it can be changed into a prime (984407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3612 + ... + 3874.

It is an arithmetic number, because the mean of its divisors is an integer number (130680).

2⁹⁸⁴⁴⁰⁹ is an apocalyptic number.

It is an amenable number.

984409 is a deficient number, since it is larger than the sum of its proper divisors (61031).

984409 is a wasteful number, since it uses less digits than its factorization.

984409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 984409 is about 992.1738758907. The cubic root of 984409 is about 99.4775754790.

The spelling of 984409 in words is "nine hundred eighty-four thousand, four hundred nine".