634787960 has 64 divisors (see below), whose sum is σ = 1501912800. Its totient is φ = 241113600.

The previous prime is 634787957. The next prime is 634787977. The reversal of 634787960 is 69787436.

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 634787899 and 634787908.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66275 + ... + 75245.

Almost surely, 2^634787960 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 634787960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (750956400).

634787960 is an abundant number, since it is smaller than the sum of its proper divisors (867124840).

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

634787960 is a wasteful number, since it uses less digits than its factorization.

634787960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9072 (or 9068 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 50.

The square root of 634787960 is about 25194.9987100615. The cubic root of 634787960 is about 859.4281216926.

The spelling of 634787960 in words is "six hundred thirty-four million, seven hundred eighty-seven thousand, nine hundred sixty".