684000632 has 32 divisors (see below), whose sum is σ = 1469107200. Its totient is φ = 292464864.

The previous prime is 684000619. The next prime is 684000637. The reversal of 684000632 is 236000486.

It is a junction number, because it is equal to n+sod(n) for n = 684000595 and 684000604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (684000637) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10673 + ... + 38495.

It is an arithmetic number, because the mean of its divisors is an integer number (45909600).

Almost surely, 2^684000632 is an apocalyptic number.

It is an amenable number.

684000632 is an abundant number, since it is smaller than the sum of its proper divisors (785106568).

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

684000632 is a wasteful number, since it uses less digits than its factorization.

684000632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28275 (or 28271 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 684000632 is about 26153.4057438032. The cubic root of 684000632 is about 881.0870828588.

The spelling of 684000632 in words is "six hundred eighty-four million, six hundred thirty-two", and thus it is an aban number.