8242939 has 8 divisors (see below), whose sum is σ = 8414720. Its totient is φ = 8073000.

The previous prime is 8242937. The next prime is 8242957. The reversal of 8242939 is 9392428.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8242939 - 2¹ = 8242937 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8242898 and 8242907.

It is not an unprimeable number, because it can be changed into a prime (8242933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11584 + ... + 12274.

It is an arithmetic number, because the mean of its divisors is an integer number (1051840).

Almost surely, 2^8242939 is an apocalyptic number.

8242939 is a deficient number, since it is larger than the sum of its proper divisors (171781).

8242939 is a wasteful number, since it uses less digits than its factorization.

8242939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 921.

The product of its digits is 31104, while the sum is 37.

The square root of 8242939 is about 2871.0518978242. The cubic root of 8242939 is about 202.0043377169.

The spelling of 8242939 in words is "eight million, two hundred forty-two thousand, nine hundred thirty-nine".