6347431 has 4 divisors (see below), whose sum is σ = 6363000. Its totient is φ = 6331864.

The previous prime is 6347381. The next prime is 6347447. The reversal of 6347431 is 1347436.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6347431 - 2¹⁹ = 5823143 is a prime.

It is a super-2 number, since 2×6347431² = 80579760599522, which contains 22 as substring.

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 6347431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6345431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7156 + ... + 7993.

It is an arithmetic number, because the mean of its divisors is an integer number (1590750).

Almost surely, 2^6347431 is an apocalyptic number.

6347431 is a deficient number, since it is larger than the sum of its proper divisors (15569).

6347431 is a wasteful number, since it uses less digits than its factorization.

6347431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15568.

The product of its digits is 6048, while the sum is 28.

The square root of 6347431 is about 2519.4108438284. The cubic root of 6347431 is about 185.1538141294.

The spelling of 6347431 in words is "six million, three hundred forty-seven thousand, four hundred thirty-one".