2081716 has 72 divisors (see below), whose sum is σ = 4915680. Its totient is φ = 762048.

The previous prime is 2081687. The next prime is 2081719. The reversal of 2081716 is 6171802.

2081716 is a modest number, since divided by 1716 gives 208 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2081719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 48391 + ... + 48433.

2^2081716 is an apocalyptic number.

2081716 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2081716, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2457840).

2081716 is an abundant number, since it is smaller than the sum of its proper divisors (2833964).

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

2081716 is a wasteful number, since it uses less digits than its factorization.

2081716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93 (or 84 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 2081716 is about 1442.8153034952. The cubic root of 2081716 is about 127.6851801017.

The spelling of 2081716 in words is "two million, eighty-one thousand, seven hundred sixteen".