987682271 has 2 divisors, whose sum is σ = 987682272. Its totient is φ = 987682270.

The previous prime is 987682259. The next prime is 987682277. The reversal of 987682271 is 172286789.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 987682271 - 2¹⁸ = 987420127 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (987682277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 493841135 + 493841136.

It is an arithmetic number, because the mean of its divisors is an integer number (493841136).

Almost surely, 2^987682271 is an apocalyptic number.

987682271 is a deficient number, since it is larger than the sum of its proper divisors (1).

987682271 is an equidigital number, since it uses as much as digits as its factorization.

987682271 is an evil number, because the sum of its binary digits is even.

The product of its digits is 677376, while the sum is 50.

The square root of 987682271 is about 31427.4127315629. The cubic root of 987682271 is about 995.8771155174.

The spelling of 987682271 in words is "nine hundred eighty-seven million, six hundred eighty-two thousand, two hundred seventy-one".