27377893 has 2 divisors, whose sum is σ = 27377894. Its totient is φ = 27377892.

The previous prime is 27377881. The next prime is 27377899. The reversal of 27377893 is 39877372.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22638564 + 4739329 = 4758^2 + 2177^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27377893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27377899) 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, 13688946 + 13688947.

It is an arithmetic number, because the mean of its divisors is an integer number (13688947).

Almost surely, 2^27377893 is an apocalyptic number.

It is an amenable number.

27377893 is a deficient number, since it is larger than the sum of its proper divisors (1).

27377893 is an equidigital number, since it uses as much as digits as its factorization.

27377893 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 444528, while the sum is 46.

The square root of 27377893 is about 5232.3888425842. The cubic root of 27377893 is about 301.3931243714.

The spelling of 27377893 in words is "twenty-seven million, three hundred seventy-seven thousand, eight hundred ninety-three".