634768 has 20 divisors (see below), whose sum is σ = 1245580. Its totient is φ = 313344.

The previous prime is 634759. The next prime is 634793. The reversal of 634768 is 867436.

634768 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 451584 + 183184 = 672^2 + 428^2 .

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, 1348 + ... + 1756.

It is an arithmetic number, because the mean of its divisors is an integer number (62279).

2⁶³⁴⁷⁶⁸ is an apocalyptic number.

It is an amenable number.

634768 is a deficient number, since it is larger than the sum of its proper divisors (610812).

634768 is a wasteful number, since it uses less digits than its factorization.

634768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514 (or 508 counting only the distinct ones).

The product of its digits is 24192, while the sum is 34.

The square root of 634768 is about 796.7232894801. The cubic root of 634768 is about 85.9419113769.

The spelling of 634768 in words is "six hundred thirty-four thousand, seven hundred sixty-eight".