9951964 has 24 divisors (see below), whose sum is σ = 19515888. Its totient is φ = 4400640.

The previous prime is 9951917. The next prime is 9951973. The reversal of 9951964 is 4691599.

It is a self number, because there is not a number n which added to its sum of digits gives 9951964.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1429 + ... + 4684.

It is an arithmetic number, because the mean of its divisors is an integer number (813162).

Almost surely, 2^9951964 is an apocalyptic number.

It is an amenable number.

9951964 is a deficient number, since it is larger than the sum of its proper divisors (9563924).

9951964 is a wasteful number, since it uses less digits than its factorization.

9951964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6165 (or 6163 counting only the distinct ones).

The product of its digits is 87480, while the sum is 43.

The square root of 9951964 is about 3154.6733586855. The cubic root of 9951964 is about 215.0979470789.

The spelling of 9951964 in words is "nine million, nine hundred fifty-one thousand, nine hundred sixty-four".