680486085 has 24 divisors (see below), whose sum is σ = 1182935520. Its totient is φ = 361871712.

The previous prime is 680486063. The next prime is 680486087. The reversal of 680486085 is 580684086.

It is not a de Polignac number, because 680486085 - 2⁶ = 680486021 is a prime.

It is a super-2 number, since 2×680486085² = 926122623757254450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 680486085.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680486087) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6175 + ... + 37404.

It is an arithmetic number, because the mean of its divisors is an integer number (49288980).

Almost surely, 2^680486085 is an apocalyptic number.

It is an amenable number.

680486085 is a deficient number, since it is larger than the sum of its proper divisors (502449435).

680486085 is a wasteful number, since it uses less digits than its factorization.

680486085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43937 (or 43934 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 45.

The square root of 680486085 is about 26086.1282102193. The cubic root of 680486085 is about 879.5754171669.

The spelling of 680486085 in words is "six hundred eighty million, four hundred eighty-six thousand, eighty-five".