628450 has 12 divisors (see below), whose sum is σ = 1169010. Its totient is φ = 251360.

The previous prime is 628447. The next prime is 628477. The reversal of 628450 is 54826.

628450 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 606841 + 21609 = 779^2 + 147^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6235 + ... + 6334.

2⁶²⁸⁴⁵⁰ is an apocalyptic number.

628450 is a deficient number, since it is larger than the sum of its proper divisors (540560).

628450 is a wasteful number, since it uses less digits than its factorization.

628450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12581 (or 12576 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 628450 is about 792.7483837890. The cubic root of 628450 is about 85.6558265406.

The spelling of 628450 in words is "six hundred twenty-eight thousand, four hundred fifty".