628894 has 16 divisors (see below), whose sum is σ = 1116000. Its totient is φ = 260064.

The previous prime is 628877. The next prime is 628909. The reversal of 628894 is 498826.

628894 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 369 + ... + 1180.

It is an arithmetic number, because the mean of its divisors is an integer number (69750).

2⁶²⁸⁸⁹⁴ is an apocalyptic number.

628894 is a deficient number, since it is larger than the sum of its proper divisors (487106).

628894 is a wasteful number, since it uses less digits than its factorization.

628894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1587.

The product of its digits is 27648, while the sum is 37.

The square root of 628894 is about 793.0283727585. The cubic root of 628894 is about 85.6759937426.

It can be divided in two parts, 6 and 28894, that added together give a square (28900 = 170²).

The spelling of 628894 in words is "six hundred twenty-eight thousand, eight hundred ninety-four".