2166073 has 12 divisors (see below), whose sum is σ = 2682048. Its totient is φ = 1712880.

The previous prime is 2166053. The next prime is 2166077. The reversal of 2166073 is 3706612.

It is not a de Polignac number, because 2166073 - 2⁵ = 2166041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2166077) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 268 + ... + 2098.

It is an arithmetic number, because the mean of its divisors is an integer number (223504).

2^2166073 is an apocalyptic number.

It is an amenable number.

2166073 is a deficient number, since it is larger than the sum of its proper divisors (515975).

2166073 is a wasteful number, since it uses less digits than its factorization.

2166073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1864 (or 1851 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 2166073 is about 1471.7584720327. The cubic root of 2166073 is about 129.3871150953.

The spelling of 2166073 in words is "two million, one hundred sixty-six thousand, seventy-three".