1684116 has 72 divisors (see below), whose sum is σ = 5014464. Its totient is φ = 466560.

The previous prime is 1684099. The next prime is 1684127. The reversal of 1684116 is 6114861.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1684116.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10251 + ... + 10413.

2^1684116 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 1684116, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2507232).

1684116 is an abundant number, since it is smaller than the sum of its proper divisors (3330348).

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

1684116 is a wasteful number, since it uses less digits than its factorization.

1684116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221 (or 216 counting only the distinct ones).

The product of its digits is 1152, while the sum is 27.

The square root of 1684116 is about 1297.7349498260. The cubic root of 1684116 is about 118.9754439363.

Adding to 1684116 its reverse (6114861), we get a palindrome (7798977).

The spelling of 1684116 in words is "one million, six hundred eighty-four thousand, one hundred sixteen".