27945383 has 2 divisors, whose sum is σ = 27945384. Its totient is φ = 27945382.

The previous prime is 27945367. The next prime is 27945389. The reversal of 27945383 is 38354972.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27945383 - 2⁴ = 27945367 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 27945383.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27945389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13972691 + 13972692.

It is an arithmetic number, because the mean of its divisors is an integer number (13972692).

Almost surely, 2^27945383 is an apocalyptic number.

27945383 is a deficient number, since it is larger than the sum of its proper divisors (1).

27945383 is an equidigital number, since it uses as much as digits as its factorization.

27945383 is an evil number, because the sum of its binary digits is even.

The product of its digits is 181440, while the sum is 41.

The square root of 27945383 is about 5286.3392815823. The cubic root of 27945383 is about 303.4613289345.

The spelling of 27945383 in words is "twenty-seven million, nine hundred forty-five thousand, three hundred eighty-three".