6429647 has 8 divisors (see below), whose sum is σ = 7504896. Its totient is φ = 5393592.

The previous prime is 6429641. The next prime is 6429649. The reversal of 6429647 is 7469246.

6429647 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 6429647 - 2¹⁰ = 6428623 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6429647.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6429641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9443 + ... + 10100.

It is an arithmetic number, because the mean of its divisors is an integer number (938112).

Almost surely, 2^6429647 is an apocalyptic number.

6429647 is a deficient number, since it is larger than the sum of its proper divisors (1075249).

6429647 is a wasteful number, since it uses less digits than its factorization.

6429647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19597.

The product of its digits is 72576, while the sum is 38.

The square root of 6429647 is about 2535.6748608605. The cubic root of 6429647 is about 185.9497976048.

The spelling of 6429647 in words is "six million, four hundred twenty-nine thousand, six hundred forty-seven".