6644933 has 2 divisors, whose sum is σ = 6644934. Its totient is φ = 6644932.

The previous prime is 6644903. The next prime is 6644959. The reversal of 6644933 is 3394466.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6466849 + 178084 = 2543^2 + 422^2 .

It is a cyclic number.

It is not a de Polignac number, because 6644933 - 2¹⁰ = 6643909 is a prime.

It is a super-4 number, since 4×6644933⁴ (a number of 28 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6644893 and 6644902.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6644903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3322466 + 3322467.

It is an arithmetic number, because the mean of its divisors is an integer number (3322467).

Almost surely, 2^6644933 is an apocalyptic number.

It is an amenable number.

6644933 is a deficient number, since it is larger than the sum of its proper divisors (1).

6644933 is an equidigital number, since it uses as much as digits as its factorization.

6644933 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46656, while the sum is 35.

The square root of 6644933 is about 2577.7767552680. The cubic root of 6644933 is about 188.0024614888.

The spelling of 6644933 in words is "six million, six hundred forty-four thousand, nine hundred thirty-three".