680465077 has 8 divisors (see below), whose sum is σ = 704793600. Its totient is φ = 656194224.

The previous prime is 680465063. The next prime is 680465087. The reversal of 680465077 is 770564086.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-680465077 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 (680465017) 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, 10348 + ... + 38314.

It is an arithmetic number, because the mean of its divisors is an integer number (88099200).

Almost surely, 2^680465077 is an apocalyptic number.

It is an amenable number.

680465077 is a deficient number, since it is larger than the sum of its proper divisors (24328523).

680465077 is a wasteful number, since it uses less digits than its factorization.

680465077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28835.

The product of its (nonzero) digits is 282240, while the sum is 43.

The square root of 680465077 is about 26085.7255409927. The cubic root of 680465077 is about 879.5663656419.

Subtracting 680465077 from its reverse (770564086), we obtain a palindrome (90099009).

The spelling of 680465077 in words is "six hundred eighty million, four hundred sixty-five thousand, seventy-seven".