27950081 has 2 divisors, whose sum is σ = 27950082. Its totient is φ = 27950080.

The previous prime is 27950077. The next prime is 27950089. The reversal of 27950081 is 18005972.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24167056 + 3783025 = 4916^2 + 1945^2 .

It is a cyclic number.

It is not a de Polignac number, because 27950081 - 2² = 27950077 is a prime.

It is a super-2 number, since 2×27950081² = 1562414055813122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (27950089) 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, 13975040 + 13975041.

It is an arithmetic number, because the mean of its divisors is an integer number (13975041).

Almost surely, 2^27950081 is an apocalyptic number.

It is an amenable number.

27950081 is a deficient number, since it is larger than the sum of its proper divisors (1).

27950081 is an equidigital number, since it uses as much as digits as its factorization.

27950081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 32.

The square root of 27950081 is about 5286.7836157724. The cubic root of 27950081 is about 303.4783333110.

The spelling of 27950081 in words is "twenty-seven million, nine hundred fifty thousand, eighty-one".