988858817 has 2 divisors, whose sum is σ = 988858818. Its totient is φ = 988858816.

The previous prime is 988858811. The next prime is 988858823. The reversal of 988858817 is 718858889.

988858817 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (988858811) and next prime (988858823).

It can be written as a sum of positive squares in only one way, i.e., 897541681 + 91317136 = 29959^2 + 9556^2 .

It is a cyclic number.

It is not a de Polignac number, because 988858817 - 2⁶ = 988858753 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 988858817.

It is not a weakly prime, because it can be changed into another prime (988858811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 494429408 + 494429409.

It is an arithmetic number, because the mean of its divisors is an integer number (494429409).

Almost surely, 2^988858817 is an apocalyptic number.

It is an amenable number.

988858817 is a deficient number, since it is larger than the sum of its proper divisors (1).

988858817 is an equidigital number, since it uses as much as digits as its factorization.

988858817 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10321920, while the sum is 62.

The square root of 988858817 is about 31446.1256278099. The cubic root of 988858817 is about 996.2723945561.

The spelling of 988858817 in words is "nine hundred eighty-eight million, eight hundred fifty-eight thousand, eight hundred seventeen".