320984 has 8 divisors (see below), whose sum is σ = 601860. Its totient is φ = 160488.

The previous prime is 320953. The next prime is 321007. The reversal of 320984 is 489023.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 320984.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20054 + ... + 20069.

2³²⁰⁹⁸⁴ is an apocalyptic number.

It is an amenable number.

320984 is a deficient number, since it is larger than the sum of its proper divisors (280876).

320984 is a wasteful number, since it uses less digits than its factorization.

320984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40129 (or 40125 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 320984 is about 566.5544987025. The cubic root of 320984 is about 68.4690751417.

The spelling of 320984 in words is "three hundred twenty thousand, nine hundred eighty-four".