36728785 has 4 divisors (see below), whose sum is σ = 44074548. Its totient is φ = 29383024.

The previous prime is 36728779. The next prime is 36728821. The reversal of 36728785 is 58782763.

36728785 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15421329 + 21307456 = 3927^2 + 4616^2 .

It is a cyclic number.

It is not a de Polignac number, because 36728785 - 2³ = 36728777 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 3672874 + ... + 3672883.

It is an arithmetic number, because the mean of its divisors is an integer number (11018637).

Almost surely, 2^36728785 is an apocalyptic number.

It is an amenable number.

36728785 is a deficient number, since it is larger than the sum of its proper divisors (7345763).

36728785 is an equidigital number, since it uses as much as digits as its factorization.

36728785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7345762.

The product of its digits is 564480, while the sum is 46.

The square root of 36728785 is about 6060.4277901812. The cubic root of 36728785 is about 332.4059997720.

The spelling of 36728785 in words is "thirty-six million, seven hundred twenty-eight thousand, seven hundred eighty-five".