680238085 has 24 divisors (see below), whose sum is σ = 871428096. Its totient is φ = 509640960.

The previous prime is 680238079. The next prime is 680238089. The reversal of 680238085 is 580832086.

It is not a de Polignac number, because 680238085 - 2⁹ = 680237573 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 (680238089) 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, 321180 + ... + 323290.

It is an arithmetic number, because the mean of its divisors is an integer number (36309504).

Almost surely, 2^680238085 is an apocalyptic number.

It is an amenable number.

680238085 is a deficient number, since it is larger than the sum of its proper divisors (191190011).

680238085 is a wasteful number, since it uses less digits than its factorization.

680238085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2373 (or 2356 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 40.

The square root of 680238085 is about 26081.3742927784. The cubic root of 680238085 is about 879.4685517889.

The spelling of 680238085 in words is "six hundred eighty million, two hundred thirty-eight thousand, eighty-five".