634063928 has 16 divisors (see below), whose sum is σ = 1194204480. Its totient is φ = 315609408.

The previous prime is 634063921. The next prime is 634063993. The reversal of 634063928 is 829360436.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634063921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 175925 + ... + 179492.

It is an arithmetic number, because the mean of its divisors is an integer number (74637780).

Almost surely, 2^634063928 is an apocalyptic number.

It is an amenable number.

634063928 is a deficient number, since it is larger than the sum of its proper divisors (560140552).

634063928 is a wasteful number, since it uses less digits than its factorization.

634063928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355646 (or 355642 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 41.

The square root of 634063928 is about 25180.6260446400. The cubic root of 634063928 is about 859.1012460378.

The spelling of 634063928 in words is "six hundred thirty-four million, sixty-three thousand, nine hundred twenty-eight".