6626489 has 4 divisors (see below), whose sum is σ = 6660324. Its totient is φ = 6592656.

The previous prime is 6626453. The next prime is 6626513. The reversal of 6626489 is 9846266.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3736489 + 2890000 = 1933^2 + 1700^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6626489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6626089) 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, 16622 + ... + 17015.

It is an arithmetic number, because the mean of its divisors is an integer number (1665081).

Almost surely, 2^6626489 is an apocalyptic number.

It is an amenable number.

6626489 is a deficient number, since it is larger than the sum of its proper divisors (33835).

6626489 is a wasteful number, since it uses less digits than its factorization.

6626489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33834.

The product of its digits is 124416, while the sum is 41.

The square root of 6626489 is about 2574.1967679259. The cubic root of 6626489 is about 187.8283573727.

The spelling of 6626489 in words is "six million, six hundred twenty-six thousand, four hundred eighty-nine".