8243642 has 16 divisors (see below), whose sum is σ = 13632192. Its totient is φ = 3707520.

The previous prime is 8243633. The next prime is 8243647. The reversal of 8243642 is 2463428.

It is not an unprimeable number, because it can be changed into a prime (8243647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 203 + ... + 4065.

It is an arithmetic number, because the mean of its divisors is an integer number (852012).

Almost surely, 2^8243642 is an apocalyptic number.

8243642 is a deficient number, since it is larger than the sum of its proper divisors (5388550).

8243642 is a wasteful number, since it uses less digits than its factorization.

8243642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3973.

The product of its digits is 9216, while the sum is 29.

The square root of 8243642 is about 2871.1743242095. The cubic root of 8243642 is about 202.0100802080.

The spelling of 8243642 in words is "eight million, two hundred forty-three thousand, six hundred forty-two".