271916987 has 2 divisors, whose sum is σ = 271916988. Its totient is φ = 271916986.

The previous prime is 271916969. The next prime is 271917031. The reversal of 271916987 is 789619172.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 271916987 - 2¹⁸ = 271654843 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (271916917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 135958493 + 135958494.

It is an arithmetic number, because the mean of its divisors is an integer number (135958494).

Almost surely, 2^271916987 is an apocalyptic number.

271916987 is a deficient number, since it is larger than the sum of its proper divisors (1).

271916987 is an equidigital number, since it uses as much as digits as its factorization.

271916987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 381024, while the sum is 50.

The square root of 271916987 is about 16489.9056091901. The cubic root of 271916987 is about 647.8564393590.

The spelling of 271916987 in words is "two hundred seventy-one million, nine hundred sixteen thousand, nine hundred eighty-seven".