27664027 has 2 divisors, whose sum is σ = 27664028. Its totient is φ = 27664026.

The previous prime is 27664003. The next prime is 27664037. The reversal of 27664027 is 72046672.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27664027 - 2⁷ = 27663899 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 27663983 and 27664001.

It is not a weakly prime, because it can be changed into another prime (27664037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13832013 + 13832014.

It is an arithmetic number, because the mean of its divisors is an integer number (13832014).

Almost surely, 2^27664027 is an apocalyptic number.

27664027 is a deficient number, since it is larger than the sum of its proper divisors (1).

27664027 is an equidigital number, since it uses as much as digits as its factorization.

27664027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28224, while the sum is 34.

The square root of 27664027 is about 5259.6603502508. The cubic root of 27664027 is about 302.4394687981.

The spelling of 27664027 in words is "twenty-seven million, six hundred sixty-four thousand, twenty-seven".