634028 has 6 divisors (see below), whose sum is σ = 1109556. Its totient is φ = 317012.

The previous prime is 634013. The next prime is 634031. The reversal of 634028 is 820436.

It is a happy number.

634028 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 633994 and 634012.

It is an unprimeable number.

634028 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79250 + ... + 79257.

It is an arithmetic number, because the mean of its divisors is an integer number (184926).

2⁶³⁴⁰²⁸ is an apocalyptic number.

It is an amenable number.

634028 is a deficient number, since it is larger than the sum of its proper divisors (475528).

634028 is a wasteful number, since it uses less digits than its factorization.

634028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158511 (or 158509 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 634028 is about 796.2587519142. The cubic root of 634028 is about 85.9085019297.

The spelling of 634028 in words is "six hundred thirty-four thousand, twenty-eight".