987719267 has 2 divisors, whose sum is σ = 987719268. Its totient is φ = 987719266.

The previous prime is 987719251. The next prime is 987719279. The reversal of 987719267 is 762917789.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 987719267 - 2⁴ = 987719251 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (987719287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 493859633 + 493859634.

It is an arithmetic number, because the mean of its divisors is an integer number (493859634).

Almost surely, 2^987719267 is an apocalyptic number.

987719267 is a deficient number, since it is larger than the sum of its proper divisors (1).

987719267 is an equidigital number, since it uses as much as digits as its factorization.

987719267 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2667168, while the sum is 56.

The square root of 987719267 is about 31428.0013204785. The cubic root of 987719267 is about 995.8895496813.

The spelling of 987719267 in words is "nine hundred eighty-seven million, seven hundred nineteen thousand, two hundred sixty-seven".