628746 has 16 divisors (see below), whose sum is σ = 1287264. Its totient is φ = 204624.

The previous prime is 628721. The next prime is 628753. The reversal of 628746 is 647826.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 961 + ... + 1476.

It is an arithmetic number, because the mean of its divisors is an integer number (80454).

2⁶²⁸⁷⁴⁶ is an apocalyptic number.

628746 is an abundant number, since it is smaller than the sum of its proper divisors (658518).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

628746 is a wasteful number, since it uses less digits than its factorization.

628746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2485.

The product of its digits is 16128, while the sum is 33.

The square root of 628746 is about 792.9350540870. The cubic root of 628746 is about 85.6692723969.

The spelling of 628746 in words is "six hundred twenty-eight thousand, seven hundred forty-six".