6643052 has 36 divisors (see below), whose sum is σ = 13035456. Its totient is φ = 2957760.

The previous prime is 6643051. The next prime is 6643057. The reversal of 6643052 is 2503466.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a plaindrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (6643051) 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 11 ways as a sum of consecutive naturals, for example, 20798 + ... + 21114.

It is an arithmetic number, because the mean of its divisors is an integer number (362096).

Almost surely, 2^6643052 is an apocalyptic number.

6643052 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

6643052 is a deficient number, since it is larger than the sum of its proper divisors (6392404).

6643052 is a wasteful number, since it uses less digits than its factorization.

6643052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378 (or 363 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 6643052 is about 2577.4118801620. The cubic root of 6643052 is about 187.9847203517.

The spelling of 6643052 in words is "six million, six hundred forty-three thousand, fifty-two".