2001706 has 8 divisors (see below), whose sum is σ = 3431520. Its totient is φ = 857868.

The previous prime is 2001697. The next prime is 2001709. The reversal of 2001706 is 6071002.

2001706 is nontrivially palindromic in base 13.

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

It is a zygodrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 2001706.

It is not an unprimeable number, because it can be changed into a prime (2001709) 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, 71476 + ... + 71503.

It is an arithmetic number, because the mean of its divisors is an integer number (428940).

2^2001706 is an apocalyptic number.

2001706 is a deficient number, since it is larger than the sum of its proper divisors (1429814).

2001706 is a wasteful number, since it uses less digits than its factorization.

2001706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142988.

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 2001706 is about 1414.8165958880. The cubic root of 2001706 is about 126.0279185636.

Adding to 2001706 its reverse (6071002), we get a palindrome (8072708).

The spelling of 2001706 in words is "two million, one thousand, seven hundred six".