6389794391 has 8 divisors (see below), whose sum is σ = 6456741984. Its totient is φ = 6322919200.

The previous prime is 6389794387. The next prime is 6389794409. The reversal of 6389794391 is 1934979836.

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 6389794391 - 2² = 6389794387 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 6389794391.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6389794331) 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, 169421 + ... + 203673.

It is an arithmetic number, because the mean of its divisors is an integer number (807092748).

Almost surely, 2^6389794391 is an apocalyptic number.

6389794391 is a deficient number, since it is larger than the sum of its proper divisors (66947593).

6389794391 is a wasteful number, since it uses less digits than its factorization.

6389794391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36201.

The product of its digits is 8817984, while the sum is 59.

The square root of 6389794391 is about 79936.1894951217. The cubic root of 6389794391 is about 1855.6481283955.

The spelling of 6389794391 in words is "six billion, three hundred eighty-nine million, seven hundred ninety-four thousand, three hundred ninety-one".