628371 has 24 divisors (see below), whose sum is σ = 1013040. Its totient is φ = 383616.

The previous prime is 628363. The next prime is 628373. The reversal of 628371 is 173826.

628371 is a `hidden beast` number, since 628 + 37 + 1 = 666.

628371 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 628371 - 2³ = 628363 is a prime.

It is a super-2 number, since 2×628371² = 789700227282, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (628373) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16965 + ... + 17001.

It is an arithmetic number, because the mean of its divisors is an integer number (42210).

2⁶²⁸³⁷¹ is an apocalyptic number.

628371 is a deficient number, since it is larger than the sum of its proper divisors (384669).

628371 is a wasteful number, since it uses less digits than its factorization.

628371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100 (or 57 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 628371 is about 792.6985555683. The cubic root of 628371 is about 85.6522372369.

It can be divided in two parts, 628 and 371, that added together give a palindrome (999).

The spelling of 628371 in words is "six hundred twenty-eight thousand, three hundred seventy-one".