6726649 has 8 divisors (see below), whose sum is σ = 7139520. Its totient is φ = 6323856.

The previous prime is 6726647. The next prime is 6726667. The reversal of 6726649 is 9466276.

6726649 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6726649 - 2¹ = 6726647 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6726647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1122 + ... + 3835.

It is an arithmetic number, because the mean of its divisors is an integer number (892440).

Almost surely, 2^6726649 is an apocalyptic number.

It is an amenable number.

6726649 is a deficient number, since it is larger than the sum of its proper divisors (412871).

6726649 is a wasteful number, since it uses less digits than its factorization.

6726649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5039.

The product of its digits is 108864, while the sum is 40.

The square root of 6726649 is about 2593.5784160114. The cubic root of 6726649 is about 188.7699766878.

The spelling of 6726649 in words is "six million, seven hundred twenty-six thousand, six hundred forty-nine".