685085368 has 48 divisors (see below), whose sum is σ = 1448151480. Its totient is φ = 301320000.

The previous prime is 685085347. The next prime is 685085381. The reversal of 685085368 is 863580586.

It is a super-2 number, since 2×685085368² = 938683922895390848, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 80518 + ... + 88618.

Almost surely, 2^685085368 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 685085368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (724075740).

685085368 is an abundant number, since it is smaller than the sum of its proper divisors (763066112).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

685085368 is a wasteful number, since it uses less digits than its factorization.

685085368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8180 (or 8145 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 49.

The square root of 685085368 is about 26174.1354776046. The cubic root of 685085368 is about 881.5526000176.

The spelling of 685085368 in words is "six hundred eighty-five million, eighty-five thousand, three hundred sixty-eight".