628591355 has 12 divisors (see below), whose sum is σ = 877462560. Its totient is φ = 431033904.

The previous prime is 628591351. The next prime is 628591373. The reversal of 628591355 is 553195826.

It is not a de Polignac number, because 628591355 - 2² = 628591351 is a prime.

It is not an unprimeable number, because it can be changed into a prime (628591351) 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 in 11 ways as a sum of consecutive naturals, for example, 1282595 + ... + 1283084.

It is an arithmetic number, because the mean of its divisors is an integer number (73121880).

Almost surely, 2^628591355 is an apocalyptic number.

628591355 is a deficient number, since it is larger than the sum of its proper divisors (248871205).

628591355 is a wasteful number, since it uses less digits than its factorization.

628591355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2565698 (or 2565691 counting only the distinct ones).

The product of its digits is 324000, while the sum is 44.

The square root of 628591355 is about 25071.7242127461. The cubic root of 628591355 is about 856.6224814495.

The spelling of 628591355 in words is "six hundred twenty-eight million, five hundred ninety-one thousand, three hundred fifty-five".