680522671 has 8 divisors (see below), whose sum is σ = 704379600. Its totient is φ = 656691840.

The previous prime is 680522663. The next prime is 680522681. The reversal of 680522671 is 176225086.

It is a happy number.

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 680522671 - 2³ = 680522663 is a prime.

It is a super-2 number, since 2×680522671² = 926222211489948482, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 680522671.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680522641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57240 + ... + 68098.

It is an arithmetic number, because the mean of its divisors is an integer number (88047450).

Almost surely, 2^680522671 is an apocalyptic number.

680522671 is a deficient number, since it is larger than the sum of its proper divisors (23856929).

680522671 is a wasteful number, since it uses less digits than its factorization.

680522671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13049.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 680522671 is about 26086.8294547268. The cubic root of 680522671 is about 879.5911801978.

The spelling of 680522671 in words is "six hundred eighty million, five hundred twenty-two thousand, six hundred seventy-one".