993804680 has 96 divisors (see below), whose sum is σ = 2484069120. Its totient is φ = 354873600.

The previous prime is 993804659. The next prime is 993804689. The reversal of 993804680 is 86408399.

It is not an unprimeable number, because it can be changed into a prime (993804689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1636937 + ... + 1637543.

It is an arithmetic number, because the mean of its divisors is an integer number (25875720).

Almost surely, 2^993804680 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 993804680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1242034560).

993804680 is an abundant number, since it is smaller than the sum of its proper divisors (1490264440).

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

993804680 is a wasteful number, since it uses less digits than its factorization.

993804680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 751 (or 686 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 47.

The square root of 993804680 is about 31524.6678015804. The cubic root of 993804680 is about 997.9306139286.

The spelling of 993804680 in words is "nine hundred ninety-three million, eight hundred four thousand, six hundred eighty".