27872347 has 2 divisors, whose sum is σ = 27872348. Its totient is φ = 27872346.

The previous prime is 27872321. The next prime is 27872353. The reversal of 27872347 is 74327872.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27872347 - 2¹¹ = 27870299 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not a weakly prime, because it can be changed into another prime (27872357) 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, 13936173 + 13936174.

It is an arithmetic number, because the mean of its divisors is an integer number (13936174).

Almost surely, 2^27872347 is an apocalyptic number.

27872347 is a deficient number, since it is larger than the sum of its proper divisors (1).

27872347 is an equidigital number, since it uses as much as digits as its factorization.

27872347 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 131712, while the sum is 40.

The square root of 27872347 is about 5279.4267681255. The cubic root of 27872347 is about 303.1967302100.

The spelling of 27872347 in words is "twenty-seven million, eight hundred seventy-two thousand, three hundred forty-seven".