9847923 has 4 divisors (see below), whose sum is σ = 13130568. Its totient is φ = 6565280.

The previous prime is 9847921. The next prime is 9847927. The reversal of 9847923 is 3297489.

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 9847923 - 2¹ = 9847921 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9847921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1641318 + ... + 1641323.

It is an arithmetic number, because the mean of its divisors is an integer number (3282642).

Almost surely, 2^9847923 is an apocalyptic number.

9847923 is a deficient number, since it is larger than the sum of its proper divisors (3282645).

9847923 is a wasteful number, since it uses less digits than its factorization.

9847923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3282644.

The product of its digits is 108864, while the sum is 42.

The square root of 9847923 is about 3138.1400542359. The cubic root of 9847923 is about 214.3457522565.

The spelling of 9847923 in words is "nine million, eight hundred forty-seven thousand, nine hundred twenty-three".