680259271 has 4 divisors (see below), whose sum is σ = 680729544. Its totient is φ = 679789000.

The previous prime is 680259259. The next prime is 680259287. The reversal of 680259271 is 172952086.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 680259271 - 2⁷ = 680259143 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680253271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 232960 + ... + 235861.

It is an arithmetic number, because the mean of its divisors is an integer number (170182386).

Almost surely, 2^680259271 is an apocalyptic number.

680259271 is a deficient number, since it is larger than the sum of its proper divisors (470273).

680259271 is a wasteful number, since it uses less digits than its factorization.

680259271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470272.

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 680259271 is about 26081.7804415266. The cubic root of 680259271 is about 879.4776820369.

The spelling of 680259271 in words is "six hundred eighty million, two hundred fifty-nine thousand, two hundred seventy-one".