1725984 has 72 divisors (see below), whose sum is σ = 5297292. Its totient is φ = 529920.

The previous prime is 1725967. The next prime is 1725991. The reversal of 1725984 is 4895271.

It can be written as a sum of positive squares in 2 ways, for example, as 1587600 + 138384 = 1260^2 + 372^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3514 + ... + 3974.

2^1725984 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1725984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2648646).

1725984 is an abundant number, since it is smaller than the sum of its proper divisors (3571308).

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

1725984 is a wasteful number, since it uses less digits than its factorization.

1725984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490 (or 479 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 1725984 is about 1313.7671026480. The cubic root of 1725984 is about 119.9533151734.

The spelling of 1725984 in words is "one million, seven hundred twenty-five thousand, nine hundred eighty-four".