2171196 has 36 divisors (see below), whose sum is σ = 5625984. Its totient is φ = 705600.

The previous prime is 2171161. The next prime is 2171203. The reversal of 2171196 is 6911712.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 741 + ... + 2211.

2^2171196 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2171196, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2812992).

2171196 is an abundant number, since it is smaller than the sum of its proper divisors (3454788).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2171196 is a wasteful number, since it uses less digits than its factorization.

2171196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1522 (or 1517 counting only the distinct ones).

The product of its digits is 756, while the sum is 27.

The square root of 2171196 is about 1473.4978791977. The cubic root of 2171196 is about 129.4890396850.

It can be divided in two parts, 21 and 71196, that added together give a palindrome (71217).

The spelling of 2171196 in words is "two million, one hundred seventy-one thousand, one hundred ninety-six".