8506943 has 4 divisors (see below), whose sum is σ = 8512920. Its totient is φ = 8500968.

The previous prime is 8506937. The next prime is 8506951. The reversal of 8506943 is 3496058.

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, and also an emirpimes, since its reverse is a distinct semiprime: 3496058 = 2 ⋅1748029.

It is a cyclic number.

It is not a de Polignac number, because 8506943 - 2¹⁸ = 8244799 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8506933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 521 + ... + 4157.

It is an arithmetic number, because the mean of its divisors is an integer number (2128230).

Almost surely, 2^8506943 is an apocalyptic number.

8506943 is a deficient number, since it is larger than the sum of its proper divisors (5977).

8506943 is a wasteful number, since it uses less digits than its factorization.

8506943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5976.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 8506943 is about 2916.6664190476. Note that the first 3 decimals coincide. The cubic root of 8506943 is about 204.1383065055.

It can be divided in two parts, 8506 and 943, that added together give a palindrome (9449).

The spelling of 8506943 in words is "eight million, five hundred six thousand, nine hundred forty-three".