6627949 has 2 divisors, whose sum is σ = 6627950. Its totient is φ = 6627948.

The previous prime is 6627917. The next prime is 6627989. The reversal of 6627949 is 9497266.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5712100 + 915849 = 2390^2 + 957^2 .

It is a cyclic number.

It is not a de Polignac number, because 6627949 - 2⁵ = 6627917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6627989) 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, 3313974 + 3313975.

It is an arithmetic number, because the mean of its divisors is an integer number (3313975).

Almost surely, 2^6627949 is an apocalyptic number.

It is an amenable number.

6627949 is a deficient number, since it is larger than the sum of its proper divisors (1).

6627949 is an equidigital number, since it uses as much as digits as its factorization.

6627949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 163296, while the sum is 43.

The square root of 6627949 is about 2574.4803359125. The cubic root of 6627949 is about 187.8421509651.

The spelling of 6627949 in words is "six million, six hundred twenty-seven thousand, nine hundred forty-nine".