8212543 has 4 divisors (see below), whose sum is σ = 8218728. Its totient is φ = 8206360.

The previous prime is 8212517. The next prime is 8212549. The reversal of 8212543 is 3452128.

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 8212543 - 2⁵ = 8212511 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 (8212549) 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, 196 + ... + 4057.

It is an arithmetic number, because the mean of its divisors is an integer number (2054682).

Almost surely, 2^8212543 is an apocalyptic number.

8212543 is a deficient number, since it is larger than the sum of its proper divisors (6185).

8212543 is a wasteful number, since it uses less digits than its factorization.

8212543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6184.

The product of its digits is 1920, while the sum is 25.

The square root of 8212543 is about 2865.7534785812. The cubic root of 8212543 is about 201.7557335631.

It can be divided in two parts, 821 and 2543, that added together give a square (3364 = 58²).

The spelling of 8212543 in words is "eight million, two hundred twelve thousand, five hundred forty-three".