36664321 has 2 divisors, whose sum is σ = 36664322. Its totient is φ = 36664320.

The previous prime is 36664301. The next prime is 36664339. The reversal of 36664321 is 12346663.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36663025 + 1296 = 6055^2 + 36^2 .

It is a cyclic number.

It is not a de Polignac number, because 36664321 - 2¹³ = 36656129 is a prime.

It is not a weakly prime, because it can be changed into another prime (36664301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18332160 + 18332161.

It is an arithmetic number, because the mean of its divisors is an integer number (18332161).

Almost surely, 2^36664321 is an apocalyptic number.

It is an amenable number.

36664321 is a deficient number, since it is larger than the sum of its proper divisors (1).

36664321 is an equidigital number, since it uses as much as digits as its factorization.

36664321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 31.

The square root of 36664321 is about 6055.1070180468. The cubic root of 36664321 is about 332.2114133453.

The spelling of 36664321 in words is "thirty-six million, six hundred sixty-four thousand, three hundred twenty-one".