8143923 has 4 divisors (see below), whose sum is σ = 10858568. Its totient is φ = 5429280.

The previous prime is 8143921. The next prime is 8143931. The reversal of 8143923 is 3293418.

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

It is not a de Polignac number, because 8143923 - 2¹ = 8143921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8143921) 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, 1357318 + ... + 1357323.

It is an arithmetic number, because the mean of its divisors is an integer number (2714642).

Almost surely, 2^8143923 is an apocalyptic number.

8143923 is a deficient number, since it is larger than the sum of its proper divisors (2714645).

8143923 is a wasteful number, since it uses less digits than its factorization.

8143923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2714644.

The product of its digits is 5184, while the sum is 30.

The square root of 8143923 is about 2853.7559461173. The cubic root of 8143923 is about 201.1922370649.

The spelling of 8143923 in words is "eight million, one hundred forty-three thousand, nine hundred twenty-three".