628984627 has 12 divisors (see below), whose sum is σ = 644504040. Its totient is φ = 613707776.

The previous prime is 628984561. The next prime is 628984651. The reversal of 628984627 is 726489826.

It is not a de Polignac number, because 628984627 - 2¹¹ = 628982579 is a prime.

It is a super-2 number, since 2×628984627² = 791243322004658258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (628984667) 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 in 11 ways as a sum of consecutive naturals, for example, 2447283 + ... + 2447539.

It is an arithmetic number, because the mean of its divisors is an integer number (53708670).

Almost surely, 2^628984627 is an apocalyptic number.

628984627 is a deficient number, since it is larger than the sum of its proper divisors (15519413).

628984627 is an equidigital number, since it uses as much as digits as its factorization.

628984627 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 710 (or 453 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 52.

The square root of 628984627 is about 25079.5659252707. The cubic root of 628984627 is about 856.8010900170.

The spelling of 628984627 in words is "six hundred twenty-eight million, nine hundred eighty-four thousand, six hundred twenty-seven".