628197 has 16 divisors (see below), whose sum is σ = 898560. Its totient is φ = 389232.

The previous prime is 628193. The next prime is 628207. The reversal of 628197 is 791826.

It is not a de Polignac number, because 628197 - 2² = 628193 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628193) 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, 5818 + ... + 5924.

It is an arithmetic number, because the mean of its divisors is an integer number (56160).

2⁶²⁸¹⁹⁷ is an apocalyptic number.

It is an amenable number.

628197 is a deficient number, since it is larger than the sum of its proper divisors (270363).

628197 is a wasteful number, since it uses less digits than its factorization.

628197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232.

The product of its digits is 6048, while the sum is 33.

The square root of 628197 is about 792.5887962872. The cubic root of 628197 is about 85.6443306206.

It can be divided in two parts, 62819 and 7, that added together give a palindrome (62826).

The spelling of 628197 in words is "six hundred twenty-eight thousand, one hundred ninety-seven".