1685016 has 64 divisors (see below), whose sum is σ = 4860000. Its totient is φ = 540288.

The previous prime is 1685011. The next prime is 1685039. The reversal of 1685016 is 6105861.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1685011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6130 + ... + 6398.

2^1685016 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 1685016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2430000).

1685016 is an abundant number, since it is smaller than the sum of its proper divisors (3174984).

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

1685016 is a wasteful number, since it uses less digits than its factorization.

1685016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313 (or 303 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 1685016 is about 1298.0816615298. The cubic root of 1685016 is about 118.9966338525.

It can be divided in two parts, 168 and 5016, that added together give a square (5184 = 72²).

The spelling of 1685016 in words is "one million, six hundred eighty-five thousand, sixteen".