628485 has 32 divisors (see below), whose sum is σ = 1185408. Its totient is φ = 280320.

The previous prime is 628477. The next prime is 628487. The reversal of 628485 is 584826.

It is not a de Polignac number, because 628485 - 2³ = 628477 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628487) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1999 + ... + 2291.

It is an arithmetic number, because the mean of its divisors is an integer number (37044).

2⁶²⁸⁴⁸⁵ is an apocalyptic number.

628485 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

628485 is a deficient number, since it is larger than the sum of its proper divisors (556923).

628485 is a wasteful number, since it uses less digits than its factorization.

628485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325.

The product of its digits is 15360, while the sum is 33.

The square root of 628485 is about 792.7704585818. The cubic root of 628485 is about 85.6574166424.

The spelling of 628485 in words is "six hundred twenty-eight thousand, four hundred eighty-five".