36781859 has 2 divisors, whose sum is σ = 36781860. Its totient is φ = 36781858.

The previous prime is 36781837. The next prime is 36781907. The reversal of 36781859 is 95818763.

It is a happy number.

36781859 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 is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-36781859 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (36781819) 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, 18390929 + 18390930.

It is an arithmetic number, because the mean of its divisors is an integer number (18390930).

Almost surely, 2^36781859 is an apocalyptic number.

36781859 is a deficient number, since it is larger than the sum of its proper divisors (1).

36781859 is an equidigital number, since it uses as much as digits as its factorization.

36781859 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 362880, while the sum is 47.

The square root of 36781859 is about 6064.8049432772. The cubic root of 36781859 is about 332.5660343342.

The spelling of 36781859 in words is "thirty-six million, seven hundred eighty-one thousand, eight hundred fifty-nine".