3665633 has 2 divisors, whose sum is σ = 3665634. Its totient is φ = 3665632.

The previous prime is 3665609. The next prime is 3665653. The reversal of 3665633 is 3365663.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2598544 + 1067089 = 1612^2 + 1033^2 .

It is a cyclic number.

It is not a de Polignac number, because 3665633 - 2⁸ = 3665377 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3665633.

It is not a weakly prime, because it can be changed into another prime (3665653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1832816 + 1832817.

It is an arithmetic number, because the mean of its divisors is an integer number (1832817).

Almost surely, 2^3665633 is an apocalyptic number.

It is an amenable number.

3665633 is a deficient number, since it is larger than the sum of its proper divisors (1).

3665633 is an equidigital number, since it uses as much as digits as its factorization.

3665633 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 29160, while the sum is 32.

The square root of 3665633 is about 1914.5842890821. The cubic root of 3665633 is about 154.1876752800.

The spelling of 3665633 in words is "three million, six hundred sixty-five thousand, six hundred thirty-three".