6394347431 has 8 divisors (see below), whose sum is σ = 6635718720. Its totient is φ = 6154367968.

The previous prime is 6394347397. The next prime is 6394347433. The reversal of 6394347431 is 1347434936.

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 6394347431 - 2¹⁸ = 6394085287 is a prime.

It is a super-2 number, since 2×6394347431² = 81775358136672599522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6394347433) 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, 338591 + ... + 356976.

It is an arithmetic number, because the mean of its divisors is an integer number (829464840).

Almost surely, 2^6394347431 is an apocalyptic number.

6394347431 is a deficient number, since it is larger than the sum of its proper divisors (241371289).

6394347431 is a wasteful number, since it uses less digits than its factorization.

6394347431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 695913.

The product of its digits is 653184, while the sum is 44.

The square root of 6394347431 is about 79964.6636396352. The cubic root of 6394347431 is about 1856.0887703366.

The spelling of 6394347431 in words is "six billion, three hundred ninety-four million, three hundred forty-seven thousand, four hundred thirty-one".