634960 has 20 divisors (see below), whose sum is σ = 1476468. Its totient is φ = 253952.

The previous prime is 634943. The next prime is 634969. The reversal of 634960 is 69436.

It can be written as a sum of positive squares in 2 ways, for example, as 484416 + 150544 = 696^2 + 388^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3889 + ... + 4048.

2⁶³⁴⁹⁶⁰ is an apocalyptic number.

It is an amenable number.

634960 is an abundant number, since it is smaller than the sum of its proper divisors (841508).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

634960 is a wasteful number, since it uses less digits than its factorization.

634960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7950 (or 7944 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 634960 is about 796.8437738980. The cubic root of 634960 is about 85.9505755311.

The spelling of 634960 in words is "six hundred thirty-four thousand, nine hundred sixty".