36707821 has 4 divisors (see below), whose sum is σ = 37044700. Its totient is φ = 36370944.

The previous prime is 36707819. The next prime is 36707849. The reversal of 36707821 is 12870763.

36707821 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 22184100 + 14523721 = 4710^2 + 3811^2 .

It is a cyclic number.

It is not a de Polignac number, because 36707821 - 2¹ = 36707819 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36707851) 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 in 3 ways as a sum of consecutive naturals, for example, 168276 + ... + 168493.

It is an arithmetic number, because the mean of its divisors is an integer number (9261175).

Almost surely, 2^36707821 is an apocalyptic number.

It is an amenable number.

36707821 is a deficient number, since it is larger than the sum of its proper divisors (336879).

36707821 is a wasteful number, since it uses less digits than its factorization.

36707821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336878.

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 36707821 is about 6058.6979624338. The cubic root of 36707821 is about 332.3427443386.

The spelling of 36707821 in words is "thirty-six million, seven hundred seven thousand, eight hundred twenty-one".