36634909 has 2 divisors, whose sum is σ = 36634910. Its totient is φ = 36634908.

The previous prime is 36634877. The next prime is 36634931. The reversal of 36634909 is 90943663.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35640900 + 994009 = 5970^2 + 997^2 .

It is a cyclic number.

It is not a de Polignac number, because 36634909 - 2⁵ = 36634877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36631909) 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, 18317454 + 18317455.

It is an arithmetic number, because the mean of its divisors is an integer number (18317455).

Almost surely, 2^36634909 is an apocalyptic number.

It is an amenable number.

36634909 is a deficient number, since it is larger than the sum of its proper divisors (1).

36634909 is an equidigital number, since it uses as much as digits as its factorization.

36634909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 104976, while the sum is 40.

The square root of 36634909 is about 6052.6778371230. The cubic root of 36634909 is about 332.1225566063.

The spelling of 36634909 in words is "thirty-six million, six hundred thirty-four thousand, nine hundred nine".