685825674 has 8 divisors (see below), whose sum is σ = 1371651360. Its totient is φ = 228608556.

The previous prime is 685825643. The next prime is 685825681. The reversal of 685825674 is 476528586.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

685825674 is an admirable number.

It is a Curzon 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, 57152134 + ... + 57152145.

It is an arithmetic number, because the mean of its divisors is an integer number (171456420).

Almost surely, 2^685825674 is an apocalyptic number.

685825674 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

685825674 is a wasteful number, since it uses less digits than its factorization.

685825674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114304284.

The product of its digits is 3225600, while the sum is 51.

The square root of 685825674 is about 26188.2735971656. The cubic root of 685825674 is about 881.8700221358.

The spelling of 685825674 in words is "six hundred eighty-five million, eight hundred twenty-five thousand, six hundred seventy-four".