1984725 has 18 divisors (see below), whose sum is σ = 3555266. Its totient is φ = 1058400.

The previous prime is 1984711. The next prime is 1984727. The reversal of 1984725 is 5274891.

It can be written as a sum of positive squares in 3 ways, for example, as 194481 + 1790244 = 441^2 + 1338^2 .

It is not a de Polignac number, because 1984725 - 2⁴ = 1984709 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1984725.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1984727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 4186 + ... + 4635.

2^1984725 is an apocalyptic number.

1984725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1984725 is a deficient number, since it is larger than the sum of its proper divisors (1570541).

1984725 is a wasteful number, since it uses less digits than its factorization.

1984725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8837 (or 8829 counting only the distinct ones).

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

The square root of 1984725 is about 1408.8026831320. The cubic root of 1984725 is about 125.6705300178.

The spelling of 1984725 in words is "one million, nine hundred eighty-four thousand, seven hundred twenty-five".