6628169 has 4 divisors (see below), whose sum is σ = 6977040. Its totient is φ = 6279300.

The previous prime is 6628159. The next prime is 6628177. The reversal of 6628169 is 9618266.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6628169 is a prime.

It is a super-2 number, since 2×6628169² = 87865248585122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6628159) 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, 174407 + ... + 174444.

It is an arithmetic number, because the mean of its divisors is an integer number (1744260).

Almost surely, 2^6628169 is an apocalyptic number.

It is an amenable number.

6628169 is a deficient number, since it is larger than the sum of its proper divisors (348871).

6628169 is a wasteful number, since it uses less digits than its factorization.

6628169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348870.

The product of its digits is 31104, while the sum is 38.

The square root of 6628169 is about 2574.5230626273. The cubic root of 6628169 is about 187.8442292760.

The spelling of 6628169 in words is "six million, six hundred twenty-eight thousand, one hundred sixty-nine".