993929988 has 48 divisors (see below), whose sum is σ = 2368517760. Its totient is φ = 324290304.

The previous prime is 993929987. The next prime is 993930011. The reversal of 993929988 is 889929399.

993929988 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (993929987) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 308128 + ... + 311336.

It is an arithmetic number, because the mean of its divisors is an integer number (49344120).

Almost surely, 2^993929988 is an apocalyptic number.

It is an amenable number.

993929988 is an abundant number, since it is smaller than the sum of its proper divisors (1374587772).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

993929988 is a wasteful number, since it uses less digits than its factorization.

993929988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3756 (or 3754 counting only the distinct ones).

The product of its digits is 22674816, while the sum is 66.

The square root of 993929988 is about 31526.6551984190. The cubic root of 993929988 is about 997.9725549110.

The spelling of 993929988 in words is "nine hundred ninety-three million, nine hundred twenty-nine thousand, nine hundred eighty-eight".