628628047 has 2 divisors, whose sum is σ = 628628048. Its totient is φ = 628628046.

The previous prime is 628628003. The next prime is 628628069. The reversal of 628628047 is 740826826.

628628047 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 628628047 - 2¹⁹ = 628103759 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 628627994 and 628628012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (628628087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 314314023 + 314314024.

It is an arithmetic number, because the mean of its divisors is an integer number (314314024).

Almost surely, 2^628628047 is an apocalyptic number.

628628047 is a deficient number, since it is larger than the sum of its proper divisors (1).

628628047 is an equidigital number, since it uses as much as digits as its factorization.

628628047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 258048, while the sum is 43.

The square root of 628628047 is about 25072.4559427273. The cubic root of 628628047 is about 856.6391486532.

The spelling of 628628047 in words is "six hundred twenty-eight million, six hundred twenty-eight thousand, forty-seven".