2066599 has 2 divisors, whose sum is σ = 2066600. Its totient is φ = 2066598.

The previous prime is 2066587. The next prime is 2066609. The reversal of 2066599 is 9956602.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2066599 - 2¹¹ = 2064551 is a prime.

It is a Chen prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2066509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1033299 + 1033300.

It is an arithmetic number, because the mean of its divisors is an integer number (1033300).

2^2066599 is an apocalyptic number.

2066599 is a deficient number, since it is larger than the sum of its proper divisors (1).

2066599 is an equidigital number, since it uses as much as digits as its factorization.

2066599 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 29160, while the sum is 37.

The square root of 2066599 is about 1437.5670419149. The cubic root of 2066599 is about 127.3753542833.

The spelling of 2066599 in words is "two million, sixty-six thousand, five hundred ninety-nine".