6649470 has 24 divisors (see below), whose sum is σ = 17288856. Its totient is φ = 1773168.

The previous prime is 6649453. The next prime is 6649481. The reversal of 6649470 is 749466.

6649470 is a `hidden beast` number, since 6 + 649 + 4 + 7 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36852 + ... + 37031.

It is an arithmetic number, because the mean of its divisors is an integer number (720369).

Almost surely, 2^6649470 is an apocalyptic number.

6649470 is an abundant number, since it is smaller than the sum of its proper divisors (10639386).

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

6649470 is a wasteful number, since it uses less digits than its factorization.

6649470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73896 (or 73893 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 6649470 is about 2578.6566270056. The cubic root of 6649470 is about 188.0452396033.

It can be divided in two parts, 66494 and 70, that added together give a square (66564 = 258²).

The spelling of 6649470 in words is "six million, six hundred forty-nine thousand, four hundred seventy".