634328 has 16 divisors (see below), whose sum is σ = 1222080. Its totient is φ = 308448.

The previous prime is 634327. The next prime is 634331. The reversal of 634328 is 823436.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 634297 and 634306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 776 + ... + 1367.

It is an arithmetic number, because the mean of its divisors is an integer number (76380).

2⁶³⁴³²⁸ is an apocalyptic number.

It is an amenable number.

634328 is a deficient number, since it is larger than the sum of its proper divisors (587752).

634328 is a wasteful number, since it uses less digits than its factorization.

634328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2186 (or 2182 counting only the distinct ones).

The product of its digits is 3456, while the sum is 26.

The square root of 634328 is about 796.4471106106. The cubic root of 634328 is about 85.9220494317.

The spelling of 634328 in words is "six hundred thirty-four thousand, three hundred twenty-eight".