8193923 has 4 divisors (see below), whose sum is σ = 8213808. Its totient is φ = 8174040.

The previous prime is 8193907. The next prime is 8193929. The reversal of 8193923 is 3293918.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3293918 = 2 ⋅1646959.

It is a cyclic number.

It is not a de Polignac number, because 8193923 - 2⁴ = 8193907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8193929) 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, 9311 + ... + 10152.

It is an arithmetic number, because the mean of its divisors is an integer number (2053452).

Almost surely, 2^8193923 is an apocalyptic number.

8193923 is a deficient number, since it is larger than the sum of its proper divisors (19885).

8193923 is a wasteful number, since it uses less digits than its factorization.

8193923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19884.

The product of its digits is 11664, while the sum is 35.

The square root of 8193923 is about 2862.5029257627. The cubic root of 8193923 is about 201.6031403701.

The spelling of 8193923 in words is "eight million, one hundred ninety-three thousand, nine hundred twenty-three".