9993256 has 96 divisors (see below), whose sum is σ = 24562440. Its totient is φ = 3773952.

The previous prime is 9993239. The next prime is 9993257. The reversal of 9993256 is 6523999.

It can be written as a sum of positive squares in 4 ways, for example, as 9400356 + 592900 = 3066^2 + 770^2 .

It is not an unprimeable number, because it can be changed into a prime (9993257) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 188526 + ... + 188578.

Almost surely, 2^9993256 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 9993256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12281220).

9993256 is an abundant number, since it is smaller than the sum of its proper divisors (14569184).

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

9993256 is a wasteful number, since it uses less digits than its factorization.

9993256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123 (or 112 counting only the distinct ones).

The product of its digits is 131220, while the sum is 43.

The square root of 9993256 is about 3161.2111602992. The cubic root of 9993256 is about 215.3950264198.

The spelling of 9993256 in words is "nine million, nine hundred ninety-three thousand, two hundred fifty-six".