1704009 has 8 divisors (see below), whose sum is σ = 2278080. Its totient is φ = 1132976.

The previous prime is 1703993. The next prime is 1704023. The reversal of 1704009 is 9004071.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1704009 - 2⁴ = 1703993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1704809) 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, 1612 + ... + 2450.

It is an arithmetic number, because the mean of its divisors is an integer number (284760).

2^1704009 is an apocalyptic number.

It is an amenable number.

1704009 is a deficient number, since it is larger than the sum of its proper divisors (574071).

1704009 is an equidigital number, since it uses as much as digits as its factorization.

1704009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1519.

The product of its (nonzero) digits is 252, while the sum is 21.

The square root of 1704009 is about 1305.3769570511. The cubic root of 1704009 is about 119.4420626811.

The spelling of 1704009 in words is "one million, seven hundred four thousand, nine".