993987296 has 48 divisors (see below), whose sum is σ = 2028453840. Its totient is φ = 478894080.

The previous prime is 993987287. The next prime is 993987311. The reversal of 993987296 is 692789399.

Its product of digits (13226976) is a multiple of the sum of its prime factors (2187).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 729656 + ... + 731016.

It is an arithmetic number, because the mean of its divisors is an integer number (42259455).

Almost surely, 2^993987296 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 993987296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1014226920).

993987296 is an abundant number, since it is smaller than the sum of its proper divisors (1034466544).

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

993987296 is a wasteful number, since it uses less digits than its factorization.

993987296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2187 (or 2179 counting only the distinct ones).

The product of its digits is 13226976, while the sum is 62.

The square root of 993987296 is about 31527.5640670192. The cubic root of 993987296 is about 997.9917349045.

The spelling of 993987296 in words is "nine hundred ninety-three million, nine hundred eighty-seven thousand, two hundred ninety-six".