27668029 has 2 divisors, whose sum is σ = 27668030. Its totient is φ = 27668028.

The previous prime is 27667999. The next prime is 27668033. The reversal of 27668029 is 92086672.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23299929 + 4368100 = 4827^2 + 2090^2 .

It is a cyclic number.

It is not a de Polignac number, because 27668029 - 2¹³ = 27659837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 27667982 and 27668000.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27668099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13834014 + 13834015.

It is an arithmetic number, because the mean of its divisors is an integer number (13834015).

Almost surely, 2^27668029 is an apocalyptic number.

It is an amenable number.

27668029 is a deficient number, since it is larger than the sum of its proper divisors (1).

27668029 is an equidigital number, since it uses as much as digits as its factorization.

27668029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 27668029 is about 5260.0407793096. The cubic root of 27668029 is about 302.4540521701.

The spelling of 27668029 in words is "twenty-seven million, six hundred sixty-eight thousand, twenty-nine".