36323681 has 2 divisors, whose sum is σ = 36323682. Its totient is φ = 36323680.

The previous prime is 36323633. The next prime is 36323743. The reversal of 36323681 is 18632363.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22515025 + 13808656 = 4745^2 + 3716^2 .

It is an emirp because it is prime and its reverse (18632363) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-36323681 is a prime.

It is a super-2 number, since 2×36323681² = 2638819602779522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (36323981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18161840 + 18161841.

It is an arithmetic number, because the mean of its divisors is an integer number (18161841).

Almost surely, 2^36323681 is an apocalyptic number.

It is an amenable number.

36323681 is a deficient number, since it is larger than the sum of its proper divisors (1).

36323681 is an equidigital number, since it uses as much as digits as its factorization.

36323681 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 32.

The square root of 36323681 is about 6026.9130572790. The cubic root of 36323681 is about 331.1793766136.

The spelling of 36323681 in words is "thirty-six million, three hundred twenty-three thousand, six hundred eighty-one".