27968071 has 2 divisors, whose sum is σ = 27968072. Its totient is φ = 27968070.

The previous prime is 27968053. The next prime is 27968081. The reversal of 27968071 is 17086972.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27968071 - 2¹⁹ = 27443783 is a prime.

It is a super-2 number, since 2×27968071² = 1564425990922082, which contains 22 as substring.

It is equal to p_1739596 and since 27968071 and 1739596 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27968081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13984035 + 13984036.

It is an arithmetic number, because the mean of its divisors is an integer number (13984036).

Almost surely, 2^27968071 is an apocalyptic number.

27968071 is a deficient number, since it is larger than the sum of its proper divisors (1).

27968071 is an equidigital number, since it uses as much as digits as its factorization.

27968071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42336, while the sum is 40.

The square root of 27968071 is about 5288.4847546344. The cubic root of 27968071 is about 303.5434303709.

The spelling of 27968071 in words is "twenty-seven million, nine hundred sixty-eight thousand, seventy-one".