1685364 has 36 divisors (see below), whose sum is σ = 4097184. Its totient is φ = 539168.

The previous prime is 1685323. The next prime is 1685381. The reversal of 1685364 is 4635861.

It is a plaindrome in base 15.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10009 + ... + 10175.

2^1685364 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 1685364, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2048592).

1685364 is an abundant number, since it is smaller than the sum of its proper divisors (2411820).

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

1685364 is a wasteful number, since it uses less digits than its factorization.

1685364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232 (or 201 counting only the distinct ones).

The product of its digits is 17280, while the sum is 33.

The square root of 1685364 is about 1298.2156985648. The cubic root of 1685364 is about 119.0048252639.

The spelling of 1685364 in words is "one million, six hundred eighty-five thousand, three hundred sixty-four".