628803 has 20 divisors (see below), whose sum is σ = 1074480. Its totient is φ = 358992.

The previous prime is 628801. The next prime is 628811. The reversal of 628803 is 308826.

It is not a de Polignac number, because 628803 - 2¹ = 628801 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (628801) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 13 + ... + 1121.

It is an arithmetic number, because the mean of its divisors is an integer number (53724).

2⁶²⁸⁸⁰³ is an apocalyptic number.

628803 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

628803 is a deficient number, since it is larger than the sum of its proper divisors (445677).

628803 is a wasteful number, since it uses less digits than its factorization.

628803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1128 (or 1119 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 628803 is about 792.9709956865. The cubic root of 628803 is about 85.6718611481.

It can be divided in two parts, 628 and 803, that added together give a triangular number (1431 = T₅₃).

The spelling of 628803 in words is "six hundred twenty-eight thousand, eight hundred three".