2001017 has 4 divisors (see below), whose sum is σ = 2003856. Its totient is φ = 1998180.

The previous prime is 2000989. The next prime is 2001037. The reversal of 2001017 is 7101002.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2001017 - 2⁶ = 2000953 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2000989 and 2001007.

It is not an unprimeable number, because it can be changed into a prime (2001037) 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 3 ways as a sum of consecutive naturals, for example, 542 + ... + 2072.

It is an arithmetic number, because the mean of its divisors is an integer number (500964).

2^2001017 is an apocalyptic number.

It is an amenable number.

2001017 is a deficient number, since it is larger than the sum of its proper divisors (2839).

2001017 is a wasteful number, since it uses less digits than its factorization.

2001017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2838.

The product of its (nonzero) digits is 14, while the sum is 11.

The square root of 2001017 is about 1414.5730804734. The cubic root of 2001017 is about 126.0134570325.

Adding to 2001017 its reverse (7101002), we get a palindrome (9102019).

The spelling of 2001017 in words is "two million, one thousand, seventeen".