6629941 has 2 divisors, whose sum is σ = 6629942. Its totient is φ = 6629940.

The previous prime is 6629927. The next prime is 6629963. The reversal of 6629941 is 1499266.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4289041 + 2340900 = 2071^2 + 1530^2 .

It is a cyclic number.

It is not a de Polignac number, because 6629941 - 2¹³ = 6621749 is a prime.

It is a super-2 number, since 2×6629941² = 87912235326962, which contains 22 as substring.

6629941 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 6629941.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6629921) 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, 3314970 + 3314971.

It is an arithmetic number, because the mean of its divisors is an integer number (3314971).

Almost surely, 2^6629941 is an apocalyptic number.

It is an amenable number.

6629941 is a deficient number, since it is larger than the sum of its proper divisors (1).

6629941 is an equidigital number, since it uses as much as digits as its factorization.

6629941 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23328, while the sum is 37.

The square root of 6629941 is about 2574.8671810406. The cubic root of 6629941 is about 187.8609674489.

The spelling of 6629941 in words is "six million, six hundred twenty-nine thousand, nine hundred forty-one".