680487571 has 2 divisors, whose sum is σ = 680487572. Its totient is φ = 680487570.

The previous prime is 680487569. The next prime is 680487607. The reversal of 680487571 is 175784086.

680487571 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 680487571 - 2¹ = 680487569 is a prime.

Together with 680487569, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (680487371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 340243785 + 340243786.

It is an arithmetic number, because the mean of its divisors is an integer number (340243786).

Almost surely, 2^680487571 is an apocalyptic number.

680487571 is a deficient number, since it is larger than the sum of its proper divisors (1).

680487571 is an equidigital number, since it uses as much as digits as its factorization.

680487571 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 376320, while the sum is 46.

The square root of 680487571 is about 26086.1566927748. The cubic root of 680487571 is about 879.5760574191.

The spelling of 680487571 in words is "six hundred eighty million, four hundred eighty-seven thousand, five hundred seventy-one".