680205727 has 8 divisors (see below), whose sum is σ = 684000000. Its totient is φ = 676418904.

The previous prime is 680205677. The next prime is 680205739. The reversal of 680205727 is 727502086.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 680205727 - 2⁷ = 680205599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680205787) 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, 339274 + ... + 341272.

It is an arithmetic number, because the mean of its divisors is an integer number (85500000).

Almost surely, 2^680205727 is an apocalyptic number.

680205727 is a deficient number, since it is larger than the sum of its proper divisors (3794273).

680205727 is a wasteful number, since it uses less digits than its factorization.

680205727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3725.

The product of its (nonzero) digits is 47040, while the sum is 37.

The square root of 680205727 is about 26080.7539576600. The cubic root of 680205727 is about 879.4546065270.

The spelling of 680205727 in words is "six hundred eighty million, two hundred five thousand, seven hundred twenty-seven".