6629968 has 20 divisors (see below), whose sum is σ = 13058068. Its totient is φ = 3260160.

The previous prime is 6629963. The next prime is 6629969. The reversal of 6629968 is 8699266.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 419904 + 6210064 = 648^2 + 2492^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6629963) 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, 2421 + ... + 4372.

Almost surely, 2^6629968 is an apocalyptic number.

It is an amenable number.

6629968 is a deficient number, since it is larger than the sum of its proper divisors (6428100).

6629968 is a wasteful number, since it uses less digits than its factorization.

6629968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6862 (or 6856 counting only the distinct ones).

The product of its digits is 279936, while the sum is 46.

The square root of 6629968 is about 2574.8724240241. The cubic root of 6629968 is about 187.8612224657.

The spelling of 6629968 in words is "six million, six hundred twenty-nine thousand, nine hundred sixty-eight".