2731087427 has 2 divisors, whose sum is σ = 2731087428. Its totient is φ = 2731087426.

The previous prime is 2731087399. The next prime is 2731087481. The reversal of 2731087427 is 7247801372.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2731087427 - 2⁸ = 2731087171 is a prime.

It is not a weakly prime, because it can be changed into another prime (2731087627) 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, 1365543713 + 1365543714.

It is an arithmetic number, because the mean of its divisors is an integer number (1365543714).

Almost surely, 2^2731087427 is an apocalyptic number.

2731087427 is a deficient number, since it is larger than the sum of its proper divisors (1).

2731087427 is an equidigital number, since it uses as much as digits as its factorization.

2731087427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 131712, while the sum is 41.

The square root of 2731087427 is about 52259.8069935204. The cubic root of 2731087427 is about 1397.8005305175.

Adding to 2731087427 its reverse (7247801372), we get a palindrome (9978888799).

The spelling of 2731087427 in words is "two billion, seven hundred thirty-one million, eighty-seven thousand, four hundred twenty-seven".