9879923 has 4 divisors (see below), whose sum is σ = 10220640. Its totient is φ = 9539208.

The previous prime is 9879913. The next prime is 9879937. The reversal of 9879923 is 3299789.

9879923 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 9879923 - 2¹⁰ = 9878899 is a prime.

It is a super-2 number, since 2×9879923² = 195225756971858, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9879913) 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, 170315 + ... + 170372.

It is an arithmetic number, because the mean of its divisors is an integer number (2555160).

Almost surely, 2^9879923 is an apocalyptic number.

9879923 is a deficient number, since it is larger than the sum of its proper divisors (340717).

9879923 is a wasteful number, since it uses less digits than its factorization.

9879923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340716.

The product of its digits is 244944, while the sum is 47.

The square root of 9879923 is about 3143.2344805948. The cubic root of 9879923 is about 214.5776674241.

The spelling of 9879923 in words is "nine million, eight hundred seventy-nine thousand, nine hundred twenty-three".