685760306 has 32 divisors (see below), whose sum is σ = 1295187840. Its totient is φ = 264528000.

The previous prime is 685760291. The next prime is 685760333. The reversal of 685760306 is 603067586.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6491 + ... + 37598.

It is an arithmetic number, because the mean of its divisors is an integer number (40474620).

Almost surely, 2^685760306 is an apocalyptic number.

685760306 is a deficient number, since it is larger than the sum of its proper divisors (609427534).

685760306 is a wasteful number, since it uses less digits than its factorization.

685760306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44210.

The product of its (nonzero) digits is 181440, while the sum is 41.

The square root of 685760306 is about 26187.0255279213. The cubic root of 685760306 is about 881.8420033971.

The spelling of 685760306 in words is "six hundred eighty-five million, seven hundred sixty thousand, three hundred six".