36863609 has 2 divisors, whose sum is σ = 36863610. Its totient is φ = 36863608.

The previous prime is 36863587. The next prime is 36863621. The reversal of 36863609 is 90636863.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25030009 + 11833600 = 5003^2 + 3440^2 .

It is a cyclic number.

It is not a de Polignac number, because 36863609 - 2⁸ = 36863353 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (36863689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18431804 + 18431805.

It is an arithmetic number, because the mean of its divisors is an integer number (18431805).

Almost surely, 2^36863609 is an apocalyptic number.

It is an amenable number.

36863609 is a deficient number, since it is larger than the sum of its proper divisors (1).

36863609 is an equidigital number, since it uses as much as digits as its factorization.

36863609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 139968, while the sum is 41.

The square root of 36863609 is about 6071.5409082044. The cubic root of 36863609 is about 332.8122350164.

The spelling of 36863609 in words is "thirty-six million, eight hundred sixty-three thousand, six hundred nine".