2171006 has 8 divisors (see below), whose sum is σ = 3268944. Its totient is φ = 1081360.

The previous prime is 2171003. The next prime is 2171011. The reversal of 2171006 is 6001712.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2171003) 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, 1370 + ... + 2493.

It is an arithmetic number, because the mean of its divisors is an integer number (408618).

2^2171006 is an apocalyptic number.

2171006 is a deficient number, since it is larger than the sum of its proper divisors (1097938).

2171006 is a wasteful number, since it uses less digits than its factorization.

2171006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4146.

The product of its (nonzero) digits is 84, while the sum is 17.

The square root of 2171006 is about 1473.4334053496. The cubic root of 2171006 is about 129.4852624066.

Adding to 2171006 its reverse (6001712), we get a palindrome (8172718).

The spelling of 2171006 in words is "two million, one hundred seventy-one thousand, six".