36879809 has 2 divisors, whose sum is σ = 36879810. Its totient is φ = 36879808.

The previous prime is 36879803. The next prime is 36879811. The reversal of 36879809 is 90897863.

36879809 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36566209 + 313600 = 6047^2 + 560^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-36879809 is a prime.

Together with 36879811, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (36879803) 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, 18439904 + 18439905.

It is an arithmetic number, because the mean of its divisors is an integer number (18439905).

Almost surely, 2^36879809 is an apocalyptic number.

It is an amenable number.

36879809 is a deficient number, since it is larger than the sum of its proper divisors (1).

36879809 is an equidigital number, since it uses as much as digits as its factorization.

36879809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 653184, while the sum is 50.

The square root of 36879809 is about 6072.8748546302. The cubic root of 36879809 is about 332.8609801859.

The spelling of 36879809 in words is "thirty-six million, eight hundred seventy-nine thousand, eight hundred nine".