27976393 has 2 divisors, whose sum is σ = 27976394. Its totient is φ = 27976392.

The previous prime is 27976381. The next prime is 27976397. The reversal of 27976393 is 39367972.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21641104 + 6335289 = 4652^2 + 2517^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27976393 is a prime.

It is not a weakly prime, because it can be changed into another prime (27976397) 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, 13988196 + 13988197.

It is an arithmetic number, because the mean of its divisors is an integer number (13988197).

Almost surely, 2^27976393 is an apocalyptic number.

It is an amenable number.

27976393 is a deficient number, since it is larger than the sum of its proper divisors (1).

27976393 is an equidigital number, since it uses as much as digits as its factorization.

27976393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 428652, while the sum is 46.

The square root of 27976393 is about 5289.2714999327. The cubic root of 27976393 is about 303.5735341980.

The spelling of 27976393 in words is "twenty-seven million, nine hundred seventy-six thousand, three hundred ninety-three".