7788996 has 54 divisors (see below), whose sum is σ = 20632430. Its totient is φ = 2477376.

The previous prime is 7788983. The next prime is 7788997. The reversal of 7788996 is 6998877.

It can be written as a sum of positive squares in only one way, i.e., 7617600 + 171396 = 2760^2 + 414^2 .

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (7788997) 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 17 ways as a sum of consecutive naturals, for example, 18840 + ... + 19248.

Almost surely, 2^7788996 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 7788996, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10316215).

7788996 is an abundant number, since it is smaller than the sum of its proper divisors (12843434).

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

7788996 is a wasteful number, since it uses less digits than its factorization.

7788996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465 (or 437 counting only the distinct ones).

The product of its digits is 1524096, while the sum is 54.

The square root of 7788996 is about 2790.8772814296. The cubic root of 7788996 is about 198.2259434794.

The spelling of 7788996 in words is "seven million, seven hundred eighty-eight thousand, nine hundred ninety-six".