36817021 has 2 divisors, whose sum is σ = 36817022. Its totient is φ = 36817020.

The previous prime is 36817009. The next prime is 36817061. The reversal of 36817021 is 12071863.

36817021 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 can be written as a sum of positive squares in only one way, i.e., 32936121 + 3880900 = 5739^2 + 1970^2 .

It is a cyclic number.

It is not a de Polignac number, because 36817021 - 2¹⁹ = 36292733 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36817061) 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, 18408510 + 18408511.

It is an arithmetic number, because the mean of its divisors is an integer number (18408511).

Almost surely, 2^36817021 is an apocalyptic number.

It is an amenable number.

36817021 is a deficient number, since it is larger than the sum of its proper divisors (1).

36817021 is an equidigital number, since it uses as much as digits as its factorization.

36817021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 36817021 is about 6067.7031074369. The cubic root of 36817021 is about 332.6719739012.

Adding to 36817021 its reverse (12071863), we get a palindrome (48888884).

The spelling of 36817021 in words is "thirty-six million, eight hundred seventeen thousand, twenty-one".