8636081 has 2 divisors, whose sum is σ = 8636082. Its totient is φ = 8636080.

The previous prime is 8636057. The next prime is 8636083. The reversal of 8636081 is 1806368.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7789681 + 846400 = 2791^2 + 920^2 .

It is a cyclic number.

It is not a de Polignac number, because 8636081 - 2¹⁰ = 8635057 is a prime.

It is a super-2 number, since 2×8636081² = 149163790077122, which contains 22 as substring.

Together with 8636083, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p₅₇₉₇₀₄ and since 8636081 and 579704 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (8636083) 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, 4318040 + 4318041.

It is an arithmetic number, because the mean of its divisors is an integer number (4318041).

Almost surely, 2^8636081 is an apocalyptic number.

It is an amenable number.

8636081 is a deficient number, since it is larger than the sum of its proper divisors (1).

8636081 is an equidigital number, since it uses as much as digits as its factorization.

8636081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 8636081 is about 2938.7209802906. The cubic root of 8636081 is about 205.1660839289.

The spelling of 8636081 in words is "eight million, six hundred thirty-six thousand, eighty-one".