987880847 has 2 divisors, whose sum is σ = 987880848. Its totient is φ = 987880846.

The previous prime is 987880801. The next prime is 987880891. The reversal of 987880847 is 748088789.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 987880847 - 2¹⁴ = 987864463 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 (987880147) 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, 493940423 + 493940424.

It is an arithmetic number, because the mean of its divisors is an integer number (493940424).

Almost surely, 2^987880847 is an apocalyptic number.

987880847 is a deficient number, since it is larger than the sum of its proper divisors (1).

987880847 is an equidigital number, since it uses as much as digits as its factorization.

987880847 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7225344, while the sum is 59.

The square root of 987880847 is about 31430.5718528951. The cubic root of 987880847 is about 995.9438522431.

The spelling of 987880847 in words is "nine hundred eighty-seven million, eight hundred eighty thousand, eight hundred forty-seven".