36528809 has 2 divisors, whose sum is σ = 36528810. Its totient is φ = 36528808.

The previous prime is 36528803. The next prime is 36528851. The reversal of 36528809 is 90882563.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36421225 + 107584 = 6035^2 + 328^2 .

It is an emirp because it is prime and its reverse (90882563) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 36528809 - 2⁸ = 36528553 is a prime.

It is not a weakly prime, because it can be changed into another prime (36528803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18264404 + 18264405.

It is an arithmetic number, because the mean of its divisors is an integer number (18264405).

Almost surely, 2^36528809 is an apocalyptic number.

It is an amenable number.

36528809 is a deficient number, since it is larger than the sum of its proper divisors (1).

36528809 is an equidigital number, since it uses as much as digits as its factorization.

36528809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 36528809 is about 6043.9067663226. The cubic root of 36528809 is about 331.8016215804.

The spelling of 36528809 in words is "thirty-six million, five hundred twenty-eight thousand, eight hundred nine".