27920147 has 2 divisors, whose sum is σ = 27920148. Its totient is φ = 27920146.

The previous prime is 27920143. The next prime is 27920227. The reversal of 27920147 is 74102972.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27920147 - 2² = 27920143 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (27920143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13960073 + 13960074.

It is an arithmetic number, because the mean of its divisors is an integer number (13960074).

Almost surely, 2^27920147 is an apocalyptic number.

27920147 is a deficient number, since it is larger than the sum of its proper divisors (1).

27920147 is an equidigital number, since it uses as much as digits as its factorization.

27920147 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7056, while the sum is 32.

The square root of 27920147 is about 5283.9518355110. The cubic root of 27920147 is about 303.3699547890.

The spelling of 27920147 in words is "twenty-seven million, nine hundred twenty thousand, one hundred forty-seven".