36828509 has 2 divisors, whose sum is σ = 36828510. Its totient is φ = 36828508.

The previous prime is 36828503. The next prime is 36828523. The reversal of 36828509 is 90582863.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35736484 + 1092025 = 5978^2 + 1045^2 .

It is a cyclic number.

It is not a de Polignac number, because 36828509 - 2²⁴ = 20051293 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36828503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18414254 + 18414255.

It is an arithmetic number, because the mean of its divisors is an integer number (18414255).

Almost surely, 2^36828509 is an apocalyptic number.

It is an amenable number.

36828509 is a deficient number, since it is larger than the sum of its proper divisors (1).

36828509 is an equidigital number, since it uses as much as digits as its factorization.

36828509 is an odious number, because the sum of its binary digits is odd.

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

The square root of 36828509 is about 6068.6496850617. The cubic root of 36828509 is about 332.7065714696.

The spelling of 36828509 in words is "thirty-six million, eight hundred twenty-eight thousand, five hundred nine".