36784609 has 2 divisors, whose sum is σ = 36784610. Its totient is φ = 36784608.

The previous prime is 36784577. The next prime is 36784621. The reversal of 36784609 is 90648763.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36723600 + 61009 = 6060^2 + 247^2 .

It is a cyclic number.

It is not a de Polignac number, because 36784609 - 2⁵ = 36784577 is a prime.

It is not a weakly prime, because it can be changed into another prime (36784639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18392304 + 18392305.

It is an arithmetic number, because the mean of its divisors is an integer number (18392305).

Almost surely, 2^36784609 is an apocalyptic number.

It is an amenable number.

36784609 is a deficient number, since it is larger than the sum of its proper divisors (1).

36784609 is an equidigital number, since it uses as much as digits as its factorization.

36784609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 217728, while the sum is 43.

The square root of 36784609 is about 6065.0316569660. The cubic root of 36784609 is about 332.5743222405.

The spelling of 36784609 in words is "thirty-six million, seven hundred eighty-four thousand, six hundred nine".