628372 has 12 divisors (see below), whose sum is σ = 1137780. Its totient is φ = 303296.

The previous prime is 628363. The next prime is 628373. The reversal of 628372 is 273826.

It can be written as a sum of positive squares in 2 ways, for example, as 171396 + 456976 = 414^2 + 676^2 .

It is an Ulam number.

It is a d-powerful number, because it can be written as 6⁷ + 2¹⁰ + 3⁹ + 8⁶ + 7² + 2¹⁶ .

It is a self number, because there is not a number n which added to its sum of digits gives 628372.

It is a congruent number.

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

628372 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2593 + ... + 2824.

It is an arithmetic number, because the mean of its divisors is an integer number (94815).

2⁶²⁸³⁷² is an apocalyptic number.

It is an amenable number.

628372 is a deficient number, since it is larger than the sum of its proper divisors (509408).

628372 is a wasteful number, since it uses less digits than its factorization.

628372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5450 (or 5448 counting only the distinct ones).

The product of its digits is 4032, while the sum is 28.

The square root of 628372 is about 792.6991863248. The cubic root of 628372 is about 85.6522826730.

It can be divided in two parts, 628 and 372, that added together give a cube (1000 = 10³).

The spelling of 628372 in words is "six hundred twenty-eight thousand, three hundred seventy-two".