9664823 has 16 divisors (see below), whose sum is σ = 11778624. Its totient is φ = 7741440.

The previous prime is 9664813. The next prime is 9664841. The reversal of 9664823 is 3284669.

It is not a de Polignac number, because 9664823 - 2¹² = 9660727 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 (9664813) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28511 + ... + 28847.

It is an arithmetic number, because the mean of its divisors is an integer number (736164).

Almost surely, 2^9664823 is an apocalyptic number.

9664823 is a deficient number, since it is larger than the sum of its proper divisors (2113801).

9664823 is a wasteful number, since it uses less digits than its factorization.

9664823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 602.

The product of its digits is 62208, while the sum is 38.

The square root of 9664823 is about 3108.8298441697. The cubic root of 9664823 is about 213.0090072381.

The spelling of 9664823 in words is "nine million, six hundred sixty-four thousand, eight hundred twenty-three".