628832671 has 2 divisors, whose sum is σ = 628832672. Its totient is φ = 628832670.

The previous prime is 628832641. The next prime is 628832681. The reversal of 628832671 is 176238826.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 628832671 - 2¹³ = 628824479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (628832641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 314416335 + 314416336.

It is an arithmetic number, because the mean of its divisors is an integer number (314416336).

Almost surely, 2^628832671 is an apocalyptic number.

628832671 is a deficient number, since it is larger than the sum of its proper divisors (1).

628832671 is an equidigital number, since it uses as much as digits as its factorization.

628832671 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 193536, while the sum is 43.

The square root of 628832671 is about 25076.5362640058. The cubic root of 628832671 is about 856.7320864480.

The spelling of 628832671 in words is "six hundred twenty-eight million, eight hundred thirty-two thousand, six hundred seventy-one".