2000641 has 4 divisors (see below), whose sum is σ = 2008512. Its totient is φ = 1992772.

The previous prime is 2000639. The next prime is 2000653. The reversal of 2000641 is 1460002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2000641 - 2¹ = 2000639 is a prime.

It is a Duffinian number.

2000641 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2000671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3541 + ... + 4066.

It is an arithmetic number, because the mean of its divisors is an integer number (502128).

2^2000641 is an apocalyptic number.

It is an amenable number.

2000641 is a deficient number, since it is larger than the sum of its proper divisors (7871).

2000641 is an equidigital number, since it uses as much as digits as its factorization.

2000641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7870.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 2000641 is about 1414.4401719408. The cubic root of 2000641 is about 126.0055637083.

Adding to 2000641 its reverse (1460002), we get a palindrome (3460643).

The spelling of 2000641 in words is "two million, six hundred forty-one", and thus it is an aban number.