6628535 has 4 divisors (see below), whose sum is σ = 7954248. Its totient is φ = 5302824.

The previous prime is 6628499. The next prime is 6628537. The reversal of 6628535 is 5358266.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6628535 - 2¹² = 6624439 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6628495 and 6628504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6628537) 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, 662849 + ... + 662858.

It is an arithmetic number, because the mean of its divisors is an integer number (1988562).

Almost surely, 2^6628535 is an apocalyptic number.

6628535 is a deficient number, since it is larger than the sum of its proper divisors (1325713).

6628535 is a wasteful number, since it uses less digits than its factorization.

6628535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1325712.

The product of its digits is 43200, while the sum is 35.

The square root of 6628535 is about 2574.5941427728. The cubic root of 6628535 is about 187.8476867277.

The spelling of 6628535 in words is "six million, six hundred twenty-eight thousand, five hundred thirty-five".