2106611 has 8 divisors (see below), whose sum is σ = 2287824. Its totient is φ = 1928160.

The previous prime is 2106563. The next prime is 2106617. The reversal of 2106611 is 1166012.

It is a happy number.

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

It is not a de Polignac number, because 2106611 - 2¹⁴ = 2090227 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2106611.

It is not an unprimeable number, because it can be changed into a prime (2106617) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1085 + ... + 2321.

It is an arithmetic number, because the mean of its divisors is an integer number (285978).

2^2106611 is an apocalyptic number.

2106611 is a deficient number, since it is larger than the sum of its proper divisors (181213).

2106611 is a wasteful number, since it uses less digits than its factorization.

2106611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1381.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 2106611 is about 1451.4168939350. The cubic root of 2106611 is about 128.1921552374.

The spelling of 2106611 in words is "two million, one hundred six thousand, six hundred eleven".