680537770 has 16 divisors (see below), whose sum is σ = 1336328928. Its totient is φ = 247468240.

The previous prime is 680537743. The next prime is 680537783. The reversal of 680537770 is 77735086.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3093244 + ... + 3093463.

It is an arithmetic number, because the mean of its divisors is an integer number (83520558).

Almost surely, 2^680537770 is an apocalyptic number.

680537770 is a deficient number, since it is larger than the sum of its proper divisors (655791158).

680537770 is a wasteful number, since it uses less digits than its factorization.

680537770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6186725.

The product of its (nonzero) digits is 246960, while the sum is 43.

The square root of 680537770 is about 26087.1188520312. The cubic root of 680537770 is about 879.5976854178.

The spelling of 680537770 in words is "six hundred eighty million, five hundred thirty-seven thousand, seven hundred seventy".