27148747 has 2 divisors, whose sum is σ = 27148748. Its totient is φ = 27148746.

The previous prime is 27148729. The next prime is 27148753. The reversal of 27148747 is 74784172.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27148747 - 2⁷ = 27148619 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (27148757) 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, 13574373 + 13574374.

It is an arithmetic number, because the mean of its divisors is an integer number (13574374).

Almost surely, 2^27148747 is an apocalyptic number.

27148747 is a deficient number, since it is larger than the sum of its proper divisors (1).

27148747 is an equidigital number, since it uses as much as digits as its factorization.

27148747 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 87808, while the sum is 40.

The square root of 27148747 is about 5210.4459502043. The cubic root of 27148747 is about 300.5499062095.

The spelling of 27148747 in words is "twenty-seven million, one hundred forty-eight thousand, seven hundred forty-seven".