731984 has 20 divisors (see below), whose sum is σ = 1547520. Its totient is φ = 332640.

The previous prime is 731981. The next prime is 731999. The reversal of 731984 is 489137.

It is a self number, because there is not a number n which added to its sum of digits gives 731984.

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 731984.

It is not an unprimeable number, because it can be changed into a prime (731981) 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, 1904 + ... + 2255.

It is an arithmetic number, because the mean of its divisors is an integer number (77376).

2⁷³¹⁹⁸⁴ is an apocalyptic number.

It is an amenable number.

731984 is an abundant number, since it is smaller than the sum of its proper divisors (815536).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

731984 is a wasteful number, since it uses less digits than its factorization.

731984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4178 (or 4172 counting only the distinct ones).

The product of its digits is 6048, while the sum is 32.

The square root of 731984 is about 855.5606349056. The cubic root of 731984 is about 90.1226311846.

The spelling of 731984 in words is "seven hundred thirty-one thousand, nine hundred eighty-four".