628677 has 24 divisors (see below), whose sum is σ = 1100736. Its totient is φ = 337536.

The previous prime is 628673. The next prime is 628679. The reversal of 628677 is 776826.

It is not a de Polignac number, because 628677 - 2² = 628673 is a prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 628677.

It is not an unprimeable number, because it can be changed into a prime (628673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 778 + ... + 1364.

It is an arithmetic number, because the mean of its divisors is an integer number (45864).

2⁶²⁸⁶⁷⁷ is an apocalyptic number.

It is an amenable number.

628677 is a deficient number, since it is larger than the sum of its proper divisors (472059).

628677 is a wasteful number, since it uses less digits than its factorization.

628677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617 (or 614 counting only the distinct ones).

The product of its digits is 28224, while the sum is 36.

The square root of 628677 is about 792.8915436552. The cubic root of 628677 is about 85.6661384360. Note that the first 3 decimals are identical.

The spelling of 628677 in words is "six hundred twenty-eight thousand, six hundred seventy-seven".