1684325 has 12 divisors (see below), whose sum is σ = 2114820. Its totient is φ = 1330560.

The previous prime is 1684307. The next prime is 1684327. The reversal of 1684325 is 5234861.

It can be written as a sum of positive squares in 6 ways, for example, as 101761 + 1582564 = 319^2 + 1258^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1684325 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1684327) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1847 + ... + 2603.

It is an arithmetic number, because the mean of its divisors is an integer number (176235).

2^1684325 is an apocalyptic number.

It is an amenable number.

1684325 is a deficient number, since it is larger than the sum of its proper divisors (430495).

1684325 is an equidigital number, since it uses as much as digits as its factorization.

1684325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 856 (or 851 counting only the distinct ones).

The product of its digits is 5760, while the sum is 29.

The square root of 1684325 is about 1297.8154722456. The cubic root of 1684325 is about 118.9803653786.

The spelling of 1684325 in words is "one million, six hundred eighty-four thousand, three hundred twenty-five".