988828889 has 2 divisors, whose sum is σ = 988828890. Its totient is φ = 988828888.

The previous prime is 988828871. The next prime is 988828891.

988828889 is nontrivially palindromic in base 10.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 787756489 + 201072400 = 28067^2 + 14180^2 .

It is a palprime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-988828889 is a prime.

Together with 988828891, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (988825889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 494414444 + 494414445.

It is an arithmetic number, because the mean of its divisors is an integer number (494414445).

Almost surely, 2^988828889 is an apocalyptic number.

It is an amenable number.

988828889 is a deficient number, since it is larger than the sum of its proper divisors (1).

988828889 is an equidigital number, since it uses as much as digits as its factorization.

988828889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 42467328, while the sum is 68.

The square root of 988828889 is about 31445.6497627255. The cubic root of 988828889 is about 996.2623436636.

The spelling of 988828889 in words is "nine hundred eighty-eight million, eight hundred twenty-eight thousand, eight hundred eighty-nine".