36665633 has 2 divisors, whose sum is σ = 36665634. Its totient is φ = 36665632.

The previous prime is 36665581. The next prime is 36665641. The reversal of 36665633 is 33656663.

36665633 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24880144 + 11785489 = 4988^2 + 3433^2 .

It is an emirp because it is prime and its reverse (33656663) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 36665633 - 2²⁴ = 19888417 is a prime.

It is not a weakly prime, because it can be changed into another prime (36665663) 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, 18332816 + 18332817.

It is an arithmetic number, because the mean of its divisors is an integer number (18332817).

Almost surely, 2^36665633 is an apocalyptic number.

It is an amenable number.

36665633 is a deficient number, since it is larger than the sum of its proper divisors (1).

36665633 is an equidigital number, since it uses as much as digits as its factorization.

36665633 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 174960, while the sum is 38.

The square root of 36665633 is about 6055.2153553775. The cubic root of 36665633 is about 332.2153759277.

The spelling of 36665633 in words is "thirty-six million, six hundred sixty-five thousand, six hundred thirty-three".