2000681 has 8 divisors (see below), whose sum is σ = 2179200. Its totient is φ = 1829520.

The previous prime is 2000671. The next prime is 2000689. The reversal of 2000681 is 1860002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2000681 is a prime.

It is a super-2 number, since 2×2000681² = 8005448927522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2000689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1265 + ... + 2366.

It is an arithmetic number, because the mean of its divisors is an integer number (272400).

2^2000681 is an apocalyptic number.

It is an amenable number.

2000681 is a deficient number, since it is larger than the sum of its proper divisors (178519).

2000681 is a wasteful number, since it uses less digits than its factorization.

2000681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3679.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 2000681 is about 1414.4543117400. The cubic root of 2000681 is about 126.0064034706.

Adding to 2000681 its reverse (1860002), we get a palindrome (3860683).

The spelling of 2000681 in words is "two million, six hundred eighty-one", and thus it is an aban number.