8380839 has 8 divisors (see below), whose sum is σ = 11189232. Its totient is φ = 5579840.

The previous prime is 8380831. The next prime is 8380859. The reversal of 8380839 is 9380838.

It is a happy number.

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 8380839 - 2³ = 8380831 is a prime.

8380839 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 8380797 and 8380806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8380831) 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, 1867 + ... + 4499.

It is an arithmetic number, because the mean of its divisors is an integer number (1398654).

Almost surely, 2^8380839 is an apocalyptic number.

8380839 is a deficient number, since it is larger than the sum of its proper divisors (2808393).

8380839 is a wasteful number, since it uses less digits than its factorization.

8380839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3697.

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 8380839 is about 2894.9678754694. The cubic root of 8380839 is about 203.1245888433.

Subtracting 8380839 from its reverse (9380838), we obtain a palindrome (999999).

The spelling of 8380839 in words is "eight million, three hundred eighty thousand, eight hundred thirty-nine".