9923956 has 24 divisors (see below), whose sum is σ = 20272896. Its totient is φ = 4162080.

The previous prime is 9923941. The next prime is 9923981. The reversal of 9923956 is 6593299.

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, 2455 + ... + 5086.

It is an arithmetic number, because the mean of its divisors is an integer number (844704).

Almost surely, 2^9923956 is an apocalyptic number.

It is an amenable number.

9923956 is an abundant number, since it is smaller than the sum of its proper divisors (10348940).

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

9923956 is a wasteful number, since it uses less digits than its factorization.

9923956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7599 (or 7597 counting only the distinct ones).

The product of its digits is 131220, while the sum is 43.

The square root of 9923956 is about 3150.2311026336. The cubic root of 9923956 is about 214.8959727503.

The spelling of 9923956 in words is "nine million, nine hundred twenty-three thousand, nine hundred fifty-six".