27404147 has 2 divisors, whose sum is σ = 27404148. Its totient is φ = 27404146.

The previous prime is 27404131. The next prime is 27404177. The reversal of 27404147 is 74140472.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27404147 - 2⁴ = 27404131 is a prime.

It is not a weakly prime, because it can be changed into another prime (27404177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13702073 + 13702074.

It is an arithmetic number, because the mean of its divisors is an integer number (13702074).

Almost surely, 2^27404147 is an apocalyptic number.

27404147 is a deficient number, since it is larger than the sum of its proper divisors (1).

27404147 is an equidigital number, since it uses as much as digits as its factorization.

27404147 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6272, while the sum is 29.

The square root of 27404147 is about 5234.8970381470. The cubic root of 27404147 is about 301.4894337930.

The spelling of 27404147 in words is "twenty-seven million, four hundred four thousand, one hundred forty-seven".