9961916 has 6 divisors (see below), whose sum is σ = 17433360. Its totient is φ = 4980956.

The previous prime is 9961907. The next prime is 9961927. The reversal of 9961916 is 6191699.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1245236 + ... + 1245243.

It is an arithmetic number, because the mean of its divisors is an integer number (2905560).

Almost surely, 2^9961916 is an apocalyptic number.

It is an amenable number.

9961916 is a deficient number, since it is larger than the sum of its proper divisors (7471444).

9961916 is a wasteful number, since it uses less digits than its factorization.

9961916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2490483 (or 2490481 counting only the distinct ones).

The product of its digits is 26244, while the sum is 41.

The square root of 9961916 is about 3156.2503069307. The cubic root of 9961916 is about 215.1696227673.

The spelling of 9961916 in words is "nine million, nine hundred sixty-one thousand, nine hundred sixteen".