628089 has 16 divisors (see below), whose sum is σ = 1044480. Its totient is φ = 326160.

The previous prime is 628063. The next prime is 628093. The reversal of 628089 is 980826.

It is not a de Polignac number, because 628089 - 2⁵ = 628057 is a prime.

It is a super-3 number, since 3×628089³ = 743335402355606907, which contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (628049) 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, 1129 + ... + 1590.

It is an arithmetic number, because the mean of its divisors is an integer number (65280).

2⁶²⁸⁰⁸⁹ is an apocalyptic number.

It is an amenable number.

628089 is a deficient number, since it is larger than the sum of its proper divisors (416391).

628089 is a wasteful number, since it uses less digits than its factorization.

628089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2740.

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 628089 is about 792.5206621912. The cubic root of 628089 is about 85.6394223313.

The spelling of 628089 in words is "six hundred twenty-eight thousand, eighty-nine".