1685028 has 12 divisors (see below), whose sum is σ = 3931760. Its totient is φ = 561672.

The previous prime is 1685011. The next prime is 1685039. The reversal of 1685028 is 8205861.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 1684986 and 1685004.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70198 + ... + 70221.

2^1685028 is an apocalyptic number.

It is an amenable number.

1685028 is an abundant number, since it is smaller than the sum of its proper divisors (2246732).

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

1685028 is a wasteful number, since it uses less digits than its factorization.

1685028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140426 (or 140424 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 1685028 is about 1298.0862837269. The cubic root of 1685028 is about 118.9969163337.

The spelling of 1685028 in words is "one million, six hundred eighty-five thousand, twenty-eight".