27881033 has 2 divisors, whose sum is σ = 27881034. Its totient is φ = 27881032.

The previous prime is 27881027. The next prime is 27881039. The reversal of 27881033 is 33018872.

It is a balanced prime because it is at equal distance from previous prime (27881027) and next prime (27881039).

It can be written as a sum of positive squares in only one way, i.e., 27321529 + 559504 = 5227^2 + 748^2 .

It is a cyclic number.

It is not a de Polignac number, because 27881033 - 2²⁰ = 26832457 is a prime.

It is a super-2 number, since 2×27881033² = 1554704002294178, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (27881039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13940516 + 13940517.

It is an arithmetic number, because the mean of its divisors is an integer number (13940517).

Almost surely, 2^27881033 is an apocalyptic number.

It is an amenable number.

27881033 is a deficient number, since it is larger than the sum of its proper divisors (1).

27881033 is an equidigital number, since it uses as much as digits as its factorization.

27881033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 27881033 is about 5280.2493312343. The cubic root of 27881033 is about 303.2282225141.

The spelling of 27881033 in words is "twenty-seven million, eight hundred eighty-one thousand, thirty-three".