988929890 has 64 divisors (see below), whose sum is σ = 1955923200. Its totient is φ = 357799680.

The previous prime is 988929889. The next prime is 988929901. The reversal of 988929890 is 98929889.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2833436 + ... + 2833784.

It is an arithmetic number, because the mean of its divisors is an integer number (30561300).

Almost surely, 2^988929890 is an apocalyptic number.

988929890 is a deficient number, since it is larger than the sum of its proper divisors (966993310).

988929890 is a wasteful number, since it uses less digits than its factorization.

988929890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747.

The product of its (nonzero) digits is 6718464, while the sum is 62.

The square root of 988929890 is about 31447.2556831276. The cubic root of 988929890 is about 996.2962625981.

The spelling of 988929890 in words is "nine hundred eighty-eight million, nine hundred twenty-nine thousand, eight hundred ninety".