685395292 has 12 divisors (see below), whose sum is σ = 1211318136. Its totient is φ = 339304400.

The previous prime is 685395259. The next prime is 685395301. The reversal of 685395292 is 292593586.

It is a happy number.

685395292 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 847858 + ... + 848665.

It is an arithmetic number, because the mean of its divisors is an integer number (100943178).

Almost surely, 2^685395292 is an apocalyptic number.

It is an amenable number.

685395292 is a deficient number, since it is larger than the sum of its proper divisors (525922844).

685395292 is a wasteful number, since it uses less digits than its factorization.

685395292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1696628 (or 1696626 counting only the distinct ones).

The product of its digits is 1166400, while the sum is 49.

The square root of 685395292 is about 26180.0552329440. The cubic root of 685395292 is about 881.6855144112.

The spelling of 685395292 in words is "six hundred eighty-five million, three hundred ninety-five thousand, two hundred ninety-two".