4065599 has 2 divisors, whose sum is σ = 4065600. Its totient is φ = 4065598.

The previous prime is 4065587. The next prime is 4065613. The reversal of 4065599 is 9955604.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4065599 - 2⁴ = 4065583 is a prime.

It is equal to p₂₈₇₄₉₈ and since 4065599 and 287498 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4065569) 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 as a sum of consecutive naturals, namely, 2032799 + 2032800.

It is an arithmetic number, because the mean of its divisors is an integer number (2032800).

Almost surely, 2^4065599 is an apocalyptic number.

4065599 is a deficient number, since it is larger than the sum of its proper divisors (1).

4065599 is an equidigital number, since it uses as much as digits as its factorization.

4065599 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48600, while the sum is 38.

The square root of 4065599 is about 2016.3330578057. Note that the first 3 decimals coincide. The cubic root of 4065599 is about 159.6031702479.

It can be divided in two parts, 4065 and 599, that added together give a palindrome (4664).

The spelling of 4065599 in words is "four million, sixty-five thousand, five hundred ninety-nine".