27454891 has 2 divisors, whose sum is σ = 27454892. Its totient is φ = 27454890.

The previous prime is 27454859. The next prime is 27454897. The reversal of 27454891 is 19845472.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27454891 - 2⁵ = 27454859 is a prime.

It is not a weakly prime, because it can be changed into another prime (27454897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13727445 + 13727446.

It is an arithmetic number, because the mean of its divisors is an integer number (13727446).

Almost surely, 2^27454891 is an apocalyptic number.

27454891 is a deficient number, since it is larger than the sum of its proper divisors (1).

27454891 is an equidigital number, since it uses as much as digits as its factorization.

27454891 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 80640, while the sum is 40.

The square root of 27454891 is about 5239.7415012575. The cubic root of 27454891 is about 301.6754074300.

The spelling of 27454891 in words is "twenty-seven million, four hundred fifty-four thousand, eight hundred ninety-one".