2059666 has 12 divisors (see below), whose sum is σ = 3594078. Its totient is φ = 882672.

The previous prime is 2059661. The next prime is 2059697. The reversal of 2059666 is 6669502.

It can be written as a sum of positive squares in only one way, i.e., 2059225 + 441 = 1435^2 + 21^2 .

It is a nialpdrome in base 8.

It is not an unprimeable number, because it can be changed into a prime (2059661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10411 + ... + 10606.

2^2059666 is an apocalyptic number.

2059666 is a deficient number, since it is larger than the sum of its proper divisors (1534412).

2059666 is a wasteful number, since it uses less digits than its factorization.

2059666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21033 (or 21026 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 2059666 is about 1435.1536503107. The cubic root of 2059666 is about 127.2327556295.

The spelling of 2059666 in words is "two million, fifty-nine thousand, six hundred sixty-six".