2166976 has 42 divisors (see below), whose sum is σ = 5009388. Its totient is φ = 927360.

The previous prime is 2166961. The next prime is 2166977. The reversal of 2166976 is 6796612.

It is not an unprimeable number, because it can be changed into a prime (2166977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2791 + ... + 3481.

2^2166976 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 2166976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2504694).

2166976 is an abundant number, since it is smaller than the sum of its proper divisors (2842412).

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

2166976 is an equidigital number, since it uses as much as digits as its factorization.

2166976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 717 (or 700 counting only the distinct ones).

The product of its digits is 27216, while the sum is 37.

The square root of 2166976 is about 1472.0652159466. The cubic root of 2166976 is about 129.4050923800.

The spelling of 2166976 in words is "two million, one hundred sixty-six thousand, nine hundred seventy-six".