8239345 has 8 divisors (see below), whose sum is σ = 10154664. Its totient is φ = 6413184.

The previous prime is 8239307. The next prime is 8239349. The reversal of 8239345 is 5439328.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 5239521 + 2999824 = 2289^2 + 1732^2 .

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 8239345 - 2¹¹ = 8237297 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8239345.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8239349) 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, 22084 + ... + 22453.

It is an arithmetic number, because the mean of its divisors is an integer number (1269333).

Almost surely, 2^8239345 is an apocalyptic number.

It is an amenable number.

8239345 is a deficient number, since it is larger than the sum of its proper divisors (1915319).

8239345 is a wasteful number, since it uses less digits than its factorization.

8239345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44579.

The product of its digits is 25920, while the sum is 34.

The square root of 8239345 is about 2870.4259265830. The cubic root of 8239345 is about 201.9749748432.

The spelling of 8239345 in words is "eight million, two hundred thirty-nine thousand, three hundred forty-five".