628797 has 16 divisors (see below), whose sum is σ = 943488. Its totient is φ = 369600.

The previous prime is 628787. The next prime is 628799. The reversal of 628797 is 797826.

628797 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 628797 - 2⁴ = 628781 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628799) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 547 + ... + 1247.

It is an arithmetic number, because the mean of its divisors is an integer number (58968).

2⁶²⁸⁷⁹⁷ is an apocalyptic number.

It is an amenable number.

628797 is a deficient number, since it is larger than the sum of its proper divisors (314691).

628797 is a wasteful number, since it uses less digits than its factorization.

628797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 740.

The product of its digits is 42336, while the sum is 39.

The square root of 628797 is about 792.9672124369. The cubic root of 628797 is about 85.6715886554.

The spelling of 628797 in words is "six hundred twenty-eight thousand, seven hundred ninety-seven".