685705352 has 32 divisors (see below), whose sum is σ = 1313405280. Its totient is φ = 335537280.

The previous prime is 685705351. The next prime is 685705379. The reversal of 685705352 is 253507586.

It is a super-2 number, since 2×685705352² = 940383659522887808, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (685705351) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72023 + ... + 80985.

It is an arithmetic number, because the mean of its divisors is an integer number (41043915).

Almost surely, 2^685705352 is an apocalyptic number.

It is an amenable number.

685705352 is a deficient number, since it is larger than the sum of its proper divisors (627699928).

685705352 is a wasteful number, since it uses less digits than its factorization.

685705352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9173 (or 9169 counting only the distinct ones).

The product of its (nonzero) digits is 252000, while the sum is 41.

The square root of 685705352 is about 26185.9762468387. The cubic root of 685705352 is about 881.8184470419.

The spelling of 685705352 in words is "six hundred eighty-five million, seven hundred five thousand, three hundred fifty-two".