6628379 has 2 divisors, whose sum is σ = 6628380. Its totient is φ = 6628378.

The previous prime is 6628373. The next prime is 6628403. The reversal of 6628379 is 9738266.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6628379 - 2⁸ = 6628123 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a d-powerful number, because it can be written as 6³ + 6⁷ + 2¹⁹ + 8 + 3¹⁰ + 7⁸ + 9² .

It is not a weakly prime, because it can be changed into another prime (6628373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3314189 + 3314190.

It is an arithmetic number, because the mean of its divisors is an integer number (3314190).

Almost surely, 2^6628379 is an apocalyptic number.

6628379 is a deficient number, since it is larger than the sum of its proper divisors (1).

6628379 is an equidigital number, since it uses as much as digits as its factorization.

6628379 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864, while the sum is 41.

The square root of 6628379 is about 2574.5638465573. The cubic root of 6628379 is about 187.8462130753.

It can be divided in two parts, 6628 and 379, that added together give a palindrome (7007).

The spelling of 6628379 in words is "six million, six hundred twenty-eight thousand, three hundred seventy-nine".