628954211 has 2 divisors, whose sum is σ = 628954212. Its totient is φ = 628954210.

The previous prime is 628954201. The next prime is 628954229. The reversal of 628954211 is 112459826.

628954211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 628954211 - 2⁶ = 628954147 is a prime.

It is equal to p_32755655 and since 628954211 and 32755655 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (628954201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 314477105 + 314477106.

It is an arithmetic number, because the mean of its divisors is an integer number (314477106).

Almost surely, 2^628954211 is an apocalyptic number.

628954211 is a deficient number, since it is larger than the sum of its proper divisors (1).

628954211 is an equidigital number, since it uses as much as digits as its factorization.

628954211 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34560, while the sum is 38.

The square root of 628954211 is about 25078.9595278592. The cubic root of 628954211 is about 856.7872789312.

The spelling of 628954211 in words is "six hundred twenty-eight million, nine hundred fifty-four thousand, two hundred eleven".