8993239 has 4 divisors (see below), whose sum is σ = 9080656. Its totient is φ = 8905824.

The previous prime is 8993233. The next prime is 8993249. The reversal of 8993239 is 9323998.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8993239 - 2¹⁷ = 8862167 is a prime.

It is a super-2 number, since 2×8993239² = 161756695422242, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8993195 and 8993204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8993233) 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, 43554 + ... + 43759.

It is an arithmetic number, because the mean of its divisors is an integer number (2270164).

Almost surely, 2^8993239 is an apocalyptic number.

8993239 is a deficient number, since it is larger than the sum of its proper divisors (87417).

8993239 is a wasteful number, since it uses less digits than its factorization.

8993239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87416.

The product of its digits is 104976, while the sum is 43.

The square root of 8993239 is about 2998.8729549616. The cubic root of 8993239 is about 207.9562824171.

The spelling of 8993239 in words is "eight million, nine hundred ninety-three thousand, two hundred thirty-nine".