6646373 has 2 divisors, whose sum is σ = 6646374. Its totient is φ = 6646372.

The previous prime is 6646363. The next prime is 6646399. The reversal of 6646373 is 3736466.

6646373 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6646084 + 289 = 2578^2 + 17^2 .

It is a cyclic number.

It is not a de Polignac number, because 6646373 - 2⁴ = 6646357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6646313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3323186 + 3323187.

It is an arithmetic number, because the mean of its divisors is an integer number (3323187).

Almost surely, 2^6646373 is an apocalyptic number.

It is an amenable number.

6646373 is a deficient number, since it is larger than the sum of its proper divisors (1).

6646373 is an equidigital number, since it uses as much as digits as its factorization.

6646373 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54432, while the sum is 35.

The square root of 6646373 is about 2578.0560505932. The cubic root of 6646373 is about 188.0160409581.

The spelling of 6646373 in words is "six million, six hundred forty-six thousand, three hundred seventy-three".