1704872 has 32 divisors (see below), whose sum is σ = 3498600. Its totient is φ = 778752.

The previous prime is 1704847. The next prime is 1704877. The reversal of 1704872 is 2784071.

It can be written as a sum of positive squares in 4 ways, for example, as 51076 + 1653796 = 226^2 + 1286^2 .

It is not an unprimeable number, because it can be changed into a prime (1704877) 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, 17528 + ... + 17624.

2^1704872 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 1704872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1749300).

1704872 is an abundant number, since it is smaller than the sum of its proper divisors (1793728).

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

1704872 is an equidigital number, since it uses as much as digits as its factorization.

1704872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142 (or 112 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 29.

The square root of 1704872 is about 1305.7074710669. The cubic root of 1704872 is about 119.4622231974.

The spelling of 1704872 in words is "one million, seven hundred four thousand, eight hundred seventy-two".