8020243 has 24 divisors (see below), whose sum is σ = 10686816. Its totient is φ = 5871360.

The previous prime is 8020241. The next prime is 8020247. The reversal of 8020243 is 3420208.

It is a happy number.

It is not a de Polignac number, because 8020243 - 2¹ = 8020241 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8020243.

It is not an unprimeable number, because it can be changed into a prime (8020241) 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 23 ways as a sum of consecutive naturals, for example, 14121 + ... + 14677.

It is an arithmetic number, because the mean of its divisors is an integer number (445284).

Almost surely, 2^8020243 is an apocalyptic number.

8020243 is a deficient number, since it is larger than the sum of its proper divisors (2666573).

8020243 is a wasteful number, since it uses less digits than its factorization.

8020243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 603 (or 592 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 8020243 is about 2832.0033545178. The cubic root of 8020243 is about 200.1685495820.

Subtracting from 8020243 its sum of digits (19), we obtain a square (8020224 = 2832²).

The spelling of 8020243 in words is "eight million, twenty thousand, two hundred forty-three".