628383 has 16 divisors (see below), whose sum is σ = 999936. Its totient is φ = 343200.

The previous prime is 628379. The next prime is 628391. The reversal of 628383 is 383826.

It is not a de Polignac number, because 628383 - 2² = 628379 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 628383.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628363) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 168 + ... + 1133.

It is an arithmetic number, because the mean of its divisors is an integer number (62496).

2⁶²⁸³⁸³ is an apocalyptic number.

628383 is a deficient number, since it is larger than the sum of its proper divisors (371553).

628383 is a wasteful number, since it uses less digits than its factorization.

628383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1334.

The product of its digits is 6912, while the sum is 30.

The square root of 628383 is about 792.7061246137. The cubic root of 628383 is about 85.6527824669.

The spelling of 628383 in words is "six hundred twenty-eight thousand, three hundred eighty-three".