987719167 has 2 divisors, whose sum is σ = 987719168. Its totient is φ = 987719166.

The previous prime is 987719143. The next prime is 987719189. The reversal of 987719167 is 761917789.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 987719167 - 2⁷ = 987719039 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 (987719267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 493859583 + 493859584.

It is an arithmetic number, because the mean of its divisors is an integer number (493859584).

Almost surely, 2^987719167 is an apocalyptic number.

987719167 is a deficient number, since it is larger than the sum of its proper divisors (1).

987719167 is an equidigital number, since it uses as much as digits as its factorization.

987719167 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1333584, while the sum is 55.

The square root of 987719167 is about 31427.9997295405. Note that the first 3 decimals coincide. The cubic root of 987719167 is about 995.8895160722.

The spelling of 987719167 in words is "nine hundred eighty-seven million, seven hundred nineteen thousand, one hundred sixty-seven".