9996728 has 16 divisors (see below), whose sum is σ = 21421680. Its totient is φ = 4284288.

The previous prime is 9996719. The next prime is 9996737. The reversal of 9996728 is 8276999.

It is an interprime number because it is at equal distance from previous prime (9996719) and next prime (9996737).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89201 + ... + 89312.

It is an arithmetic number, because the mean of its divisors is an integer number (1338855).

Almost surely, 2^9996728 is an apocalyptic number.

It is an amenable number.

9996728 is an abundant number, since it is smaller than the sum of its proper divisors (11424952).

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

9996728 is a wasteful number, since it uses less digits than its factorization.

9996728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178526 (or 178522 counting only the distinct ones).

The product of its digits is 489888, while the sum is 50.

The square root of 9996728 is about 3161.7602692171. The cubic root of 9996728 is about 215.4199687389.

The spelling of 9996728 in words is "nine million, nine hundred ninety-six thousand, seven hundred twenty-eight".