2166007 has 2 divisors, whose sum is σ = 2166008. Its totient is φ = 2166006.

The previous prime is 2165971. The next prime is 2166023. The reversal of 2166007 is 7006612.

2166007 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2166007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2166077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1083003 + 1083004.

It is an arithmetic number, because the mean of its divisors is an integer number (1083004).

2^2166007 is an apocalyptic number.

2166007 is a deficient number, since it is larger than the sum of its proper divisors (1).

2166007 is an equidigital number, since it uses as much as digits as its factorization.

2166007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 2166007 is about 1471.7360497046. The cubic root of 2166007 is about 129.3858009450.

The spelling of 2166007 in words is "two million, one hundred sixty-six thousand, seven".