6649506 has 32 divisors (see below), whose sum is σ = 15556800. Its totient is φ = 2099520.

The previous prime is 6649483. The next prime is 6649547. The reversal of 6649506 is 6059466.

It is a happy number.

6649506 is a `hidden beast` number, since 6 + 649 + 5 + 0 + 6 = 666.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2215 + ... + 4266.

It is an arithmetic number, because the mean of its divisors is an integer number (486150).

Almost surely, 2^6649506 is an apocalyptic number.

6649506 is an abundant number, since it is smaller than the sum of its proper divisors (8907294).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6649506 is a wasteful number, since it uses less digits than its factorization.

6649506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6511 (or 6505 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 6649506 is about 2578.6636073750. The cubic root of 6649506 is about 188.0455789594.

The spelling of 6649506 in words is "six million, six hundred forty-nine thousand, five hundred six".