988842287 has 2 divisors, whose sum is σ = 988842288. Its totient is φ = 988842286.

The previous prime is 988842241. The next prime is 988842293. The reversal of 988842287 is 782248889.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 988842287 - 2⁸ = 988842031 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (988842187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 494421143 + 494421144.

It is an arithmetic number, because the mean of its divisors is an integer number (494421144).

Almost surely, 2^988842287 is an apocalyptic number.

988842287 is a deficient number, since it is larger than the sum of its proper divisors (1).

988842287 is an equidigital number, since it uses as much as digits as its factorization.

988842287 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4128768, while the sum is 56.

The square root of 988842287 is about 31445.8627962408. The cubic root of 988842287 is about 996.2668432161.

The spelling of 988842287 in words is "nine hundred eighty-eight million, eight hundred forty-two thousand, two hundred eighty-seven".