4005653 has 2 divisors, whose sum is σ = 4005654. Its totient is φ = 4005652.

The previous prime is 4005649. The next prime is 4005691. The reversal of 4005653 is 3565004.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3598609 + 407044 = 1897^2 + 638^2 .

It is a cyclic number.

It is not a de Polignac number, because 4005653 - 2² = 4005649 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4005613) 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, 2002826 + 2002827.

It is an arithmetic number, because the mean of its divisors is an integer number (2002827).

Almost surely, 2^4005653 is an apocalyptic number.

It is an amenable number.

4005653 is a deficient number, since it is larger than the sum of its proper divisors (1).

4005653 is an equidigital number, since it uses as much as digits as its factorization.

4005653 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 4005653 is about 2001.4127510336. The cubic root of 4005653 is about 158.8148498148.

The spelling of 4005653 in words is "four million, five thousand, six hundred fifty-three".