628750 has 20 divisors (see below), whose sum is σ = 1180872. Its totient is φ = 251000.

The previous prime is 628721. The next prime is 628753. The reversal of 628750 is 57826.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628753) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 999 + ... + 1501.

2⁶²⁸⁷⁵⁰ is an apocalyptic number.

628750 is a deficient number, since it is larger than the sum of its proper divisors (552122).

628750 is an equidigital number, since it uses as much as digits as its factorization.

628750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525 (or 510 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 628750 is about 792.9375763577. The cubic root of 628750 is about 85.6694540688.

It can be divided in two parts, 628 and 750, that added together give a triangular number (1378 = T₅₂).

The spelling of 628750 in words is "six hundred twenty-eight thousand, seven hundred fifty".