1685896 has 16 divisors (see below), whose sum is σ = 3200400. Its totient is φ = 832464.

The previous prime is 1685881. The next prime is 1685897. The reversal of 1685896 is 6985861.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1685897) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 606 + ... + 1933.

It is an arithmetic number, because the mean of its divisors is an integer number (200025).

2^1685896 is an apocalyptic number.

It is an amenable number.

1685896 is a deficient number, since it is larger than the sum of its proper divisors (1514504).

1685896 is a wasteful number, since it uses less digits than its factorization.

1685896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2628 (or 2624 counting only the distinct ones).

The product of its digits is 103680, while the sum is 43.

The square root of 1685896 is about 1298.4205790113. The cubic root of 1685896 is about 119.0173455873.

It can be divided in two parts, 168 and 5896, that multiplied together give a triangular number (990528 = T₁₄₀₇).

The spelling of 1685896 in words is "one million, six hundred eighty-five thousand, eight hundred ninety-six".