8379405509 has 8 divisors (see below), whose sum is σ = 8403478080. Its totient is φ = 8355362400.

The previous prime is 8379405497. The next prime is 8379405533. The reversal of 8379405509 is 9055049738.

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 8379405509 - 2⁸ = 8379405253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8379405809) 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 7 ways as a sum of consecutive naturals, for example, 642152 + ... + 655070.

It is an arithmetic number, because the mean of its divisors is an integer number (1050434760).

Almost surely, 2^8379405509 is an apocalyptic number.

It is an amenable number.

8379405509 is a deficient number, since it is larger than the sum of its proper divisors (24072571).

8379405509 is a wasteful number, since it uses less digits than its factorization.

8379405509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14731.

The product of its (nonzero) digits is 1360800, while the sum is 50.

The square root of 8379405509 is about 91539.0927910038. The cubic root of 8379405509 is about 2031.1300711218.

The spelling of 8379405509 in words is "eight billion, three hundred seventy-nine million, four hundred five thousand, five hundred nine".