988289866 has 16 divisors (see below), whose sum is σ = 1580040000. Its totient is φ = 461995200.

The previous prime is 988289833. The next prime is 988289867. The reversal of 988289866 is 668982889.

988289866 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 988289798 and 988289807.

It is not an unprimeable number, because it can be changed into a prime (988289867) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91116 + ... + 101383.

It is an arithmetic number, because the mean of its divisors is an integer number (98752500).

Almost surely, 2^988289866 is an apocalyptic number.

988289866 is a deficient number, since it is larger than the sum of its proper divisors (591750134).

988289866 is a wasteful number, since it uses less digits than its factorization.

988289866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192669.

The product of its digits is 23887872, while the sum is 64.

The square root of 988289866 is about 31437.0778858341. The cubic root of 988289866 is about 996.0812857375.

The spelling of 988289866 in words is "nine hundred eighty-eight million, two hundred eighty-nine thousand, eight hundred sixty-six".