36028561 has 2 divisors, whose sum is σ = 36028562. Its totient is φ = 36028560.

The previous prime is 36028543. The next prime is 36028567. The reversal of 36028561 is 16582063.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36000000 + 28561 = 6000^2 + 169^2 .

It is an emirp because it is prime and its reverse (16582063) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 36028561 - 2⁵ = 36028529 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (36028567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18014280 + 18014281.

It is an arithmetic number, because the mean of its divisors is an integer number (18014281).

Almost surely, 2^36028561 is an apocalyptic number.

It is an amenable number.

36028561 is a deficient number, since it is larger than the sum of its proper divisors (1).

36028561 is an equidigital number, since it uses as much as digits as its factorization.

36028561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 36028561 is about 6002.3796114541. The cubic root of 36028561 is about 330.2800224964.

The spelling of 36028561 in words is "thirty-six million, twenty-eight thousand, five hundred sixty-one".