680717750 has 64 divisors (see below), whose sum is σ = 1352332800. Its totient is φ = 255852000.

The previous prime is 680717717. The next prime is 680717797. The reversal of 680717750 is 57717086.

It is a junction number, because it is equal to n+sod(n) for n = 680717698 and 680717707.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 659735 + ... + 660765.

It is an arithmetic number, because the mean of its divisors is an integer number (21130200).

Almost surely, 2^680717750 is an apocalyptic number.

680717750 is a deficient number, since it is larger than the sum of its proper divisors (671615050).

680717750 is a wasteful number, since it uses less digits than its factorization.

680717750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1206 (or 1196 counting only the distinct ones).

The product of its (nonzero) digits is 82320, while the sum is 41.

The square root of 680717750 is about 26090.5682191860. The cubic root of 680717750 is about 879.6752201971.

The spelling of 680717750 in words is "six hundred eighty million, seven hundred seventeen thousand, seven hundred fifty".