987848791 has 2 divisors, whose sum is σ = 987848792. Its totient is φ = 987848790.

The previous prime is 987848789. The next prime is 987848809. The reversal of 987848791 is 197848789.

It is a happy number.

987848791 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 987848791 - 2¹ = 987848789 is a prime.

Together with 987848789, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (987848731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 493924395 + 493924396.

It is an arithmetic number, because the mean of its divisors is an integer number (493924396).

Almost surely, 2^987848791 is an apocalyptic number.

987848791 is a deficient number, since it is larger than the sum of its proper divisors (1).

987848791 is an equidigital number, since it uses as much as digits as its factorization.

987848791 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8128512, while the sum is 61.

The square root of 987848791 is about 31430.0618993982. The cubic root of 987848791 is about 995.9330795804.

The spelling of 987848791 in words is "nine hundred eighty-seven million, eight hundred forty-eight thousand, seven hundred ninety-one".