6649574 has 8 divisors (see below), whose sum is σ = 9986328. Its totient is φ = 3320800.

The previous prime is 6649571. The next prime is 6649579. The reversal of 6649574 is 4759466.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6649571) 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, 974 + ... + 3774.

It is an arithmetic number, because the mean of its divisors is an integer number (1248291).

Almost surely, 2^6649574 is an apocalyptic number.

6649574 is a deficient number, since it is larger than the sum of its proper divisors (3336754).

6649574 is a wasteful number, since it uses less digits than its factorization.

6649574 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3990.

The product of its digits is 181440, while the sum is 41.

The square root of 6649574 is about 2578.6767924655. The cubic root of 6649574 is about 188.0462199622.

The spelling of 6649574 in words is "six million, six hundred forty-nine thousand, five hundred seventy-four".