628767 has 12 divisors (see below), whose sum is σ = 956280. Its totient is φ = 397008.

The previous prime is 628759. The next prime is 628781. The reversal of 628767 is 767826.

628767 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 628767 - 2³ = 628759 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 628767.

It is not an unprimeable number, because it can be changed into a prime (628757) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1668 + ... + 2009.

It is an arithmetic number, because the mean of its divisors is an integer number (79690).

2⁶²⁸⁷⁶⁷ is an apocalyptic number.

628767 is a deficient number, since it is larger than the sum of its proper divisors (327513).

628767 is a wasteful number, since it uses less digits than its factorization.

628767 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3702 (or 3699 counting only the distinct ones).

The product of its digits is 28224, while the sum is 36.

The square root of 628767 is about 792.9482959185. The cubic root of 628767 is about 85.6702261656.

The spelling of 628767 in words is "six hundred twenty-eight thousand, seven hundred sixty-seven".