27946769 has 2 divisors, whose sum is σ = 27946770. Its totient is φ = 27946768.

The previous prime is 27946753. The next prime is 27946783. The reversal of 27946769 is 96764972.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25806400 + 2140369 = 5080^2 + 1463^2 .

It is a cyclic number.

It is not a de Polignac number, because 27946769 - 2⁴ = 27946753 is a prime.

It is a super-2 number, since 2×27946769² = 1562043795078722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (27946799) 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, 13973384 + 13973385.

It is an arithmetic number, because the mean of its divisors is an integer number (13973385).

Almost surely, 2^27946769 is an apocalyptic number.

It is an amenable number.

27946769 is a deficient number, since it is larger than the sum of its proper divisors (1).

27946769 is an equidigital number, since it uses as much as digits as its factorization.

27946769 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1143072, while the sum is 50.

The square root of 27946769 is about 5286.4703725643. The cubic root of 27946769 is about 303.4663457495.

The spelling of 27946769 in words is "twenty-seven million, nine hundred forty-six thousand, seven hundred sixty-nine".