6649266 has 16 divisors (see below), whose sum is σ = 14321664. Its totient is φ = 2045904.

The previous prime is 6649249. The next prime is 6649267. The reversal of 6649266 is 6629466.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6649267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42546 + ... + 42701.

It is an arithmetic number, because the mean of its divisors is an integer number (895104).

Almost surely, 2^6649266 is an apocalyptic number.

6649266 is an abundant number, since it is smaller than the sum of its proper divisors (7672398).

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

6649266 is a wasteful number, since it uses less digits than its factorization.

6649266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85265.

The product of its digits is 93312, while the sum is 39.

The square root of 6649266 is about 2578.6170712225. The cubic root of 6649266 is about 188.0433165617.

The spelling of 6649266 in words is "six million, six hundred forty-nine thousand, two hundred sixty-six".