27965429 has 2 divisors, whose sum is σ = 27965430. Its totient is φ = 27965428.

The previous prime is 27965419. The next prime is 27965449. The reversal of 27965429 is 92456972.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23059204 + 4906225 = 4802^2 + 2215^2 .

It is a cyclic number.

It is not a de Polignac number, because 27965429 - 2⁸ = 27965173 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 27965429.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27965419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13982714 + 13982715.

It is an arithmetic number, because the mean of its divisors is an integer number (13982715).

Almost surely, 2^27965429 is an apocalyptic number.

It is an amenable number.

27965429 is a deficient number, since it is larger than the sum of its proper divisors (1).

27965429 is an equidigital number, since it uses as much as digits as its factorization.

27965429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 272160, while the sum is 44.

The square root of 27965429 is about 5288.2349607407. The cubic root of 27965429 is about 303.5338720070.

The spelling of 27965429 in words is "twenty-seven million, nine hundred sixty-five thousand, four hundred twenty-nine".