680609146 has 64 divisors (see below), whose sum is σ = 1306368000. Its totient is φ = 259212096.

The previous prime is 680609113. The next prime is 680609159. The reversal of 680609146 is 641906086.

It is a junction number, because it is equal to n+sod(n) for n = 680609099 and 680609108.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 323205 + ... + 325303.

It is an arithmetic number, because the mean of its divisors is an integer number (20412000).

Almost surely, 2^680609146 is an apocalyptic number.

680609146 is a deficient number, since it is larger than the sum of its proper divisors (625758854).

680609146 is a wasteful number, since it uses less digits than its factorization.

680609146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2203.

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 680609146 is about 26088.4868476499. The cubic root of 680609146 is about 879.6284355943.

The spelling of 680609146 in words is "six hundred eighty million, six hundred nine thousand, one hundred forty-six".