2166836 has 24 divisors (see below), whose sum is σ = 4562880. Its totient is φ = 879552.

The previous prime is 2166833. The next prime is 2166877. The reversal of 2166836 is 6386612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2166833) 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, 1505 + ... + 2568.

It is an arithmetic number, because the mean of its divisors is an integer number (190120).

2^2166836 is an apocalyptic number.

It is an amenable number.

2166836 is an abundant number, since it is smaller than the sum of its proper divisors (2396044).

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

2166836 is a wasteful number, since it uses less digits than its factorization.

2166836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4103 (or 4101 counting only the distinct ones).

The product of its digits is 10368, while the sum is 32.

The square root of 2166836 is about 1472.0176629375. The cubic root of 2166836 is about 129.4023055313.

The spelling of 2166836 in words is "two million, one hundred sixty-six thousand, eight hundred thirty-six".