27091963 has 2 divisors, whose sum is σ = 27091964. Its totient is φ = 27091962.

The previous prime is 27091951. The next prime is 27091969. The reversal of 27091963 is 36919072.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27091963 - 2¹⁷ = 26960891 is a prime.

It is not a weakly prime, because it can be changed into another prime (27091969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13545981 + 13545982.

It is an arithmetic number, because the mean of its divisors is an integer number (13545982).

Almost surely, 2^27091963 is an apocalyptic number.

27091963 is a deficient number, since it is larger than the sum of its proper divisors (1).

27091963 is an equidigital number, since it uses as much as digits as its factorization.

27091963 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20412, while the sum is 37.

The square root of 27091963 is about 5204.9940441849. The cubic root of 27091963 is about 300.3402177308.

The spelling of 27091963 in words is "twenty-seven million, ninety-one thousand, nine hundred sixty-three".