628814107 has 2 divisors, whose sum is σ = 628814108. Its totient is φ = 628814106.

The previous prime is 628814083. The next prime is 628814111. The reversal of 628814107 is 701418826.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 628814107 - 2¹¹ = 628812059 is a prime.

It is not a weakly prime, because it can be changed into another prime (628814807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 314407053 + 314407054.

It is an arithmetic number, because the mean of its divisors is an integer number (314407054).

Almost surely, 2^628814107 is an apocalyptic number.

628814107 is a deficient number, since it is larger than the sum of its proper divisors (1).

628814107 is an equidigital number, since it uses as much as digits as its factorization.

628814107 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21504, while the sum is 37.

The square root of 628814107 is about 25076.1661144602. The cubic root of 628814107 is about 856.7236557309.

The spelling of 628814107 in words is "six hundred twenty-eight million, eight hundred fourteen thousand, one hundred seven".