9661912 has 32 divisors (see below), whose sum is σ = 19842480. Its totient is φ = 4383360.

The previous prime is 9661889. The next prime is 9661913. The reversal of 9661912 is 2191669.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9661913) 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 7 ways as a sum of consecutive naturals, for example, 5583 + ... + 7105.

Almost surely, 2^9661912 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 9661912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9921240).

9661912 is an abundant number, since it is smaller than the sum of its proper divisors (10180568).

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

9661912 is a wasteful number, since it uses less digits than its factorization.

9661912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1603 (or 1599 counting only the distinct ones).

The product of its digits is 5832, while the sum is 34.

The square root of 9661912 is about 3108.3616263234. The cubic root of 9661912 is about 212.9876193146.

The spelling of 9661912 in words is "nine million, six hundred sixty-one thousand, nine hundred twelve".