2196806 has 8 divisors (see below), whose sum is σ = 3351240. Its totient is φ = 1079728.

The previous prime is 2196781. The next prime is 2196809. The reversal of 2196806 is 6086912.

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 (2196809) 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, 9191 + ... + 9426.

It is an arithmetic number, because the mean of its divisors is an integer number (418905).

2^2196806 is an apocalyptic number.

2196806 is a deficient number, since it is larger than the sum of its proper divisors (1154434).

2196806 is a wasteful number, since it uses less digits than its factorization.

2196806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18678.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 2196806 is about 1482.1626091627. The cubic root of 2196806 is about 129.9961734574.

The spelling of 2196806 in words is "two million, one hundred ninety-six thousand, eight hundred six".