1681116 has 24 divisors (see below), whose sum is σ = 4093824. Its totient is φ = 535920.

The previous prime is 1681103. The next prime is 1681129. The reversal of 1681116 is 6111861.

It is an interprime number because it is at equal distance from previous prime (1681103) and next prime (1681129).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2770 + ... + 3321.

It is an arithmetic number, because the mean of its divisors is an integer number (170576).

2^1681116 is an apocalyptic number.

It is an amenable number.

1681116 is an abundant number, since it is smaller than the sum of its proper divisors (2412708).

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

1681116 is a wasteful number, since it uses less digits than its factorization.

1681116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6121 (or 6119 counting only the distinct ones).

The product of its digits is 288, while the sum is 24.

The square root of 1681116 is about 1296.5785745569. The cubic root of 1681116 is about 118.9047563117.

Adding to 1681116 its reverse (6111861), we get a palindrome (7792977).

The spelling of 1681116 in words is "one million, six hundred eighty-one thousand, one hundred sixteen".