2166675 has 24 divisors (see below), whose sum is σ = 4094976. Its totient is φ = 990240.

The previous prime is 2166673. The next prime is 2166679. The reversal of 2166675 is 5766612.

It is not a de Polignac number, because 2166675 - 2¹ = 2166673 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2166673) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1539 + ... + 2588.

It is an arithmetic number, because the mean of its divisors is an integer number (170624).

2^2166675 is an apocalyptic number.

2166675 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2166675 is a deficient number, since it is larger than the sum of its proper divisors (1928301).

2166675 is a wasteful number, since it uses less digits than its factorization.

2166675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4147 (or 4142 counting only the distinct ones).

The product of its digits is 15120, while the sum is 33.

The square root of 2166675 is about 1471.9629750778. The cubic root of 2166675 is about 129.3991005068.

The spelling of 2166675 in words is "two million, one hundred sixty-six thousand, six hundred seventy-five".