1725489 has 8 divisors (see below), whose sum is σ = 2556320. Its totient is φ = 1150308.

The previous prime is 1725481. The next prime is 1725497. The reversal of 1725489 is 9845271.

1725489 is a `hidden beast` number, since 172 + 5 + 489 = 666.

It is an interprime number because it is at equal distance from previous prime (1725481) and next prime (1725497).

It is not a de Polignac number, because 1725489 - 2³ = 1725481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1725481) 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, 31927 + ... + 31980.

It is an arithmetic number, because the mean of its divisors is an integer number (319540).

2^1725489 is an apocalyptic number.

It is an amenable number.

1725489 is a deficient number, since it is larger than the sum of its proper divisors (830831).

1725489 is an equidigital number, since it uses as much as digits as its factorization.

1725489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63916 (or 63910 counting only the distinct ones).

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

The square root of 1725489 is about 1313.5786995837. The cubic root of 1725489 is about 119.9418468230.

The spelling of 1725489 in words is "one million, seven hundred twenty-five thousand, four hundred eighty-nine".