628015 has 16 divisors (see below), whose sum is σ = 811008. Its totient is φ = 465696.

The previous prime is 628013. The next prime is 628021. The reversal of 628015 is 510826.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 628015 - 2¹ = 628013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4882 + ... + 5008.

It is an arithmetic number, because the mean of its divisors is an integer number (50688).

2⁶²⁸⁰¹⁵ is an apocalyptic number.

628015 is a deficient number, since it is larger than the sum of its proper divisors (182993).

628015 is a wasteful number, since it uses less digits than its factorization.

628015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 628015 is about 792.4739743361. The cubic root of 628015 is about 85.6360589194.

The spelling of 628015 in words is "six hundred twenty-eight thousand, fifteen".