8472143 has 4 divisors (see below), whose sum is σ = 8480928. Its totient is φ = 8463360.

The previous prime is 8472133. The next prime is 8472151. The reversal of 8472143 is 3412748.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 8472143 - 2⁴ = 8472127 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 (8472133) 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, 2738 + ... + 4943.

It is an arithmetic number, because the mean of its divisors is an integer number (2120232).

Almost surely, 2^8472143 is an apocalyptic number.

8472143 is a deficient number, since it is larger than the sum of its proper divisors (8785).

8472143 is a wasteful number, since it uses less digits than its factorization.

8472143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8784.

The product of its digits is 5376, while the sum is 29.

The square root of 8472143 is about 2910.6945906433. The cubic root of 8472143 is about 203.8595646935.

It can be divided in two parts, 84 and 72143, that added together give a palindrome (72227).

The spelling of 8472143 in words is "eight million, four hundred seventy-two thousand, one hundred forty-three".