685235358 has 48 divisors (see below), whose sum is σ = 1531385856. Its totient is φ = 221311440.

The previous prime is 685235339. The next prime is 685235363. The reversal of 685235358 is 853532586.

685235358 is a `hidden beast` number, since 68 + 5 + 235 + 358 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 94813 + ... + 101783.

It is an arithmetic number, because the mean of its divisors is an integer number (31903872).

Almost surely, 2^685235358 is an apocalyptic number.

685235358 is an abundant number, since it is smaller than the sum of its proper divisors (846150498).

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

685235358 is a wasteful number, since it uses less digits than its factorization.

685235358 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7149 (or 7146 counting only the distinct ones).

The product of its digits is 864000, while the sum is 45.

The square root of 685235358 is about 26177.0005539214. Note that the first 3 decimals coincide. The cubic root of 685235358 is about 881.6169299208.

The spelling of 685235358 in words is "six hundred eighty-five million, two hundred thirty-five thousand, three hundred fifty-eight".