2001008671 has 16 divisors (see below), whose sum is σ = 2163360960. Its totient is φ = 1845141760.

The previous prime is 2001008651. The next prime is 2001008683. The reversal of 2001008671 is 1768001002.

It is a cyclic number.

It is not a de Polignac number, because 2001008671 - 2¹⁵ = 2000975903 is a prime.

It is a Duffinian number.

2001008671 is a modest number, since divided by 8671 gives 2001 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001008651) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 513651 + ... + 517531.

It is an arithmetic number, because the mean of its divisors is an integer number (135210060).

Almost surely, 2^2001008671 is an apocalyptic number.

2001008671 is a deficient number, since it is larger than the sum of its proper divisors (162352289).

2001008671 is a wasteful number, since it uses less digits than its factorization.

2001008671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4706.

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

The square root of 2001008671 is about 44732.6354130852. The cubic root of 2001008671 is about 1260.1328219350.

Adding to 2001008671 its reverse (1768001002), we get a palindrome (3769009673).

The spelling of 2001008671 in words is "two billion, one million, eight thousand, six hundred seventy-one".