6628963 has 8 divisors (see below), whose sum is σ = 7657200. Its totient is φ = 5671680.

The previous prime is 6628943. The next prime is 6628981. The reversal of 6628963 is 3698266.

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 6628963 - 2¹³ = 6620771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6628943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17538 + ... + 17911.

It is an arithmetic number, because the mean of its divisors is an integer number (957150).

Almost surely, 2^6628963 is an apocalyptic number.

6628963 is a deficient number, since it is larger than the sum of its proper divisors (1028237).

6628963 is a wasteful number, since it uses less digits than its factorization.

6628963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35477.

The product of its digits is 93312, while the sum is 40.

The square root of 6628963 is about 2574.6772613281. The cubic root of 6628963 is about 187.8517297065.

The spelling of 6628963 in words is "six million, six hundred twenty-eight thousand, nine hundred sixty-three".