9960823 has 4 divisors (see below), whose sum is σ = 10109560. Its totient is φ = 9812088.

The previous prime is 9960787. The next prime is 9960869. The reversal of 9960823 is 3280699.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3280699 = 31 ⋅105829.

It is a cyclic number.

It is not a de Polignac number, because 9960823 - 2²¹ = 7863671 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9960023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74268 + ... + 74401.

It is an arithmetic number, because the mean of its divisors is an integer number (2527390).

Almost surely, 2^9960823 is an apocalyptic number.

9960823 is a deficient number, since it is larger than the sum of its proper divisors (148737).

9960823 is a wasteful number, since it uses less digits than its factorization.

9960823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148736.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 9960823 is about 3156.0771536830. The cubic root of 9960823 is about 215.1617531634.

The spelling of 9960823 in words is "nine million, nine hundred sixty thousand, eight hundred twenty-three".