2166704 has 20 divisors (see below), whose sum is σ = 4225920. Its totient is φ = 1076160.

The previous prime is 2166691. The next prime is 2166709. The reversal of 2166704 is 4076612.

It is not an unprimeable number, because it can be changed into a prime (2166709) 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, 2702 + ... + 3410.

It is an arithmetic number, because the mean of its divisors is an integer number (211296).

2^2166704 is an apocalyptic number.

It is an amenable number.

2166704 is a deficient number, since it is larger than the sum of its proper divisors (2059216).

2166704 is a wasteful number, since it uses less digits than its factorization.

2166704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 908 (or 902 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 2166704 is about 1471.9728258361. The cubic root of 2166704 is about 129.3996778211.

The spelling of 2166704 in words is "two million, one hundred sixty-six thousand, seven hundred four".