634988676 has 48 divisors (see below), whose sum is σ = 1696020480. Its totient is φ = 181134240.

The previous prime is 634988671. The next prime is 634988687. The reversal of 634988676 is 676889436.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (634988671) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49621 + ... + 61091.

It is an arithmetic number, because the mean of its divisors is an integer number (35333760).

Almost surely, 2^634988676 is an apocalyptic number.

It is an amenable number.

634988676 is an abundant number, since it is smaller than the sum of its proper divisors (1061031804).

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

634988676 is a wasteful number, since it uses less digits than its factorization.

634988676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12144 (or 12142 counting only the distinct ones).

The product of its digits is 10450944, while the sum is 57.

The square root of 634988676 is about 25198.9816460904. The cubic root of 634988676 is about 859.5186940872.

The spelling of 634988676 in words is "six hundred thirty-four million, nine hundred eighty-eight thousand, six hundred seventy-six".