6629847 has 32 divisors (see below), whose sum is σ = 10944000. Its totient is φ = 3556224.

The previous prime is 6629807. The next prime is 6629873. The reversal of 6629847 is 7489266.

It is not a de Polignac number, because 6629847 - 2⁸ = 6629591 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6629799 and 6629808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6629807) 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 31 ways as a sum of consecutive naturals, for example, 17304 + ... + 17682.

It is an arithmetic number, because the mean of its divisors is an integer number (342000).

Almost surely, 2^6629847 is an apocalyptic number.

6629847 is a deficient number, since it is larger than the sum of its proper divisors (4314153).

6629847 is a wasteful number, since it uses less digits than its factorization.

6629847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420 (or 406 counting only the distinct ones).

The product of its digits is 145152, while the sum is 42.

The square root of 6629847 is about 2574.8489276072. The cubic root of 6629847 is about 187.8600796072.

The spelling of 6629847 in words is "six million, six hundred twenty-nine thousand, eight hundred forty-seven".