680236536 has 64 divisors (see below), whose sum is σ = 1945831680. Its totient is φ = 194123520.

The previous prime is 680236517. The next prime is 680236541. The reversal of 680236536 is 635632086.

It is a happy number.

680236536 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 680236494 and 680236503.

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, 182451 + ... + 186141.

It is an arithmetic number, because the mean of its divisors is an integer number (30403620).

Almost surely, 2^680236536 is an apocalyptic number.

It is an amenable number.

680236536 is an abundant number, since it is smaller than the sum of its proper divisors (1265595144).

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

680236536 is a wasteful number, since it uses less digits than its factorization.

680236536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4804 (or 4800 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 39.

The square root of 680236536 is about 26081.3445972404. The cubic root of 680236536 is about 879.4678842295.

The spelling of 680236536 in words is "six hundred eighty million, two hundred thirty-six thousand, five hundred thirty-six".