9961996 has 12 divisors (see below), whose sum is σ = 19018440. Its totient is φ = 4528160.

The previous prime is 9961981. The next prime is 9962003. The reversal of 9961996 is 6991699.

It is a happy 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, 113161 + ... + 113248.

It is an arithmetic number, because the mean of its divisors is an integer number (1584870).

Almost surely, 2^9961996 is an apocalyptic number.

It is an amenable number.

9961996 is a deficient number, since it is larger than the sum of its proper divisors (9056444).

9961996 is a wasteful number, since it uses less digits than its factorization.

9961996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226424 (or 226422 counting only the distinct ones).

The product of its digits is 236196, while the sum is 49.

The square root of 9961996 is about 3156.2629801713. The cubic root of 9961996 is about 215.1701987450.

It can be divided in two parts, 996 and 1996, that added together give a palindrome (2992).

The spelling of 9961996 in words is "nine million, nine hundred sixty-one thousand, nine hundred ninety-six".