634828 has 12 divisors (see below), whose sum is σ = 1169560. Its totient is φ = 300672.

The previous prime is 634817. The next prime is 634841. The reversal of 634828 is 828436.

It is a happy number.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 634828.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4101 + ... + 4252.

2⁶³⁴⁸²⁸ is an apocalyptic number.

It is an amenable number.

634828 is a deficient number, since it is larger than the sum of its proper divisors (534732).

634828 is a wasteful number, since it uses less digits than its factorization.

634828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8376 (or 8374 counting only the distinct ones).

The product of its digits is 9216, while the sum is 31.

The square root of 634828 is about 796.7609428179. The cubic root of 634828 is about 85.9446191127.

The spelling of 634828 in words is "six hundred thirty-four thousand, eight hundred twenty-eight".