628935 has 16 divisors (see below), whose sum is σ = 1050624. Its totient is φ = 320672.

The previous prime is 628921. The next prime is 628937. The reversal of 628935 is 539826.

It is a happy number.

628935 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 628935 - 2⁸ = 628679 is a prime.

It is a nialpdrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 628896 and 628905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628937) 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, 567 + ... + 1256.

It is an arithmetic number, because the mean of its divisors is an integer number (65664).

2⁶²⁸⁹³⁵ is an apocalyptic number.

628935 is a deficient number, since it is larger than the sum of its proper divisors (421689).

628935 is a wasteful number, since it uses less digits than its factorization.

628935 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1854.

The product of its digits is 12960, while the sum is 33.

The square root of 628935 is about 793.0542226103. The cubic root of 628935 is about 85.6778555504.

The spelling of 628935 in words is "six hundred twenty-eight thousand, nine hundred thirty-five".