36912409 has 2 divisors, whose sum is σ = 36912410. Its totient is φ = 36912408.

The previous prime is 36912371. The next prime is 36912461. The reversal of 36912409 is 90421963.

36912409 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21483225 + 15429184 = 4635^2 + 3928^2 .

It is a cyclic number.

It is not a de Polignac number, because 36912409 - 2¹⁵ = 36879641 is a prime.

It is not a weakly prime, because it can be changed into another prime (36912509) 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, 18456204 + 18456205.

It is an arithmetic number, because the mean of its divisors is an integer number (18456205).

Almost surely, 2^36912409 is an apocalyptic number.

It is an amenable number.

36912409 is a deficient number, since it is larger than the sum of its proper divisors (1).

36912409 is an equidigital number, since it uses as much as digits as its factorization.

36912409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 36912409 is about 6075.5583282526. The cubic root of 36912409 is about 332.9590290685.

The spelling of 36912409 in words is "thirty-six million, nine hundred twelve thousand, four hundred nine".