628379 has 2 divisors, whose sum is σ = 628380. Its totient is φ = 628378.

The previous prime is 628373. The next prime is 628391. The reversal of 628379 is 973826.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 628379 - 2⁴ = 628363 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (628373) 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, 314189 + 314190.

It is an arithmetic number, because the mean of its divisors is an integer number (314190).

2⁶²⁸³⁷⁹ is an apocalyptic number.

628379 is a deficient number, since it is larger than the sum of its proper divisors (1).

628379 is an equidigital number, since it uses as much as digits as its factorization.

628379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 35.

The square root of 628379 is about 792.7036016066. The cubic root of 628379 is about 85.6526007244.

The spelling of 628379 in words is "six hundred twenty-eight thousand, three hundred seventy-nine".