36220729 has 2 divisors, whose sum is σ = 36220730. Its totient is φ = 36220728.

The previous prime is 36220711. The next prime is 36220733. The reversal of 36220729 is 92702263.

36220729 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., 33408400 + 2812329 = 5780^2 + 1677^2 .

It is a cyclic number.

It is not a de Polignac number, because 36220729 - 2⁵ = 36220697 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 36220729.

It is not a weakly prime, because it can be changed into another prime (36220529) 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, 18110364 + 18110365.

It is an arithmetic number, because the mean of its divisors is an integer number (18110365).

Almost surely, 2^36220729 is an apocalyptic number.

It is an amenable number.

36220729 is a deficient number, since it is larger than the sum of its proper divisors (1).

36220729 is an equidigital number, since it uses as much as digits as its factorization.

36220729 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 36220729 is about 6018.3659742492. The cubic root of 36220729 is about 330.8661939427.

The spelling of 36220729 in words is "thirty-six million, two hundred twenty thousand, seven hundred twenty-nine".