8345209239 has 12 divisors (see below), whose sum is σ = 12056079672. Its totient is φ = 5562601200.

The previous prime is 8345209231. The next prime is 8345209261. The reversal of 8345209239 is 9329025438.

It is a happy number.

8345209239 is a `hidden beast` number, since 8 + 3 + 4 + 520 + 92 + 39 = 666.

It is not a de Polignac number, because 8345209239 - 2³ = 8345209231 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8345209194 and 8345209203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8345209231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9072 + ... + 129509.

It is an arithmetic number, because the mean of its divisors is an integer number (1004673306).

Almost surely, 2^8345209239 is an apocalyptic number.

8345209239 is a deficient number, since it is larger than the sum of its proper divisors (3710870433).

8345209239 is a wasteful number, since it uses less digits than its factorization.

8345209239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145278 (or 145275 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The square root of 8345209239 is about 91352.1167735045. The cubic root of 8345209239 is about 2028.3632968129.

The spelling of 8345209239 in words is "eight billion, three hundred forty-five million, two hundred nine thousand, two hundred thirty-nine".