988929871 has 2 divisors, whose sum is σ = 988929872. Its totient is φ = 988929870.

The previous prime is 988929869. The next prime is 988929889. The reversal of 988929871 is 178929889.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 988929871 - 2¹ = 988929869 is a prime.

Together with 988929869, 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 (988939871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 494464935 + 494464936.

It is an arithmetic number, because the mean of its divisors is an integer number (494464936).

Almost surely, 2^988929871 is an apocalyptic number.

988929871 is a deficient number, since it is larger than the sum of its proper divisors (1).

988929871 is an equidigital number, since it uses as much as digits as its factorization.

988929871 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5225472, while the sum is 61.

The square root of 988929871 is about 31447.2553810344. The cubic root of 988929871 is about 996.2962562176.

The spelling of 988929871 in words is "nine hundred eighty-eight million, nine hundred twenty-nine thousand, eight hundred seventy-one".