685050192 has 120 divisors (see below), whose sum is σ = 1975873536. Its totient is φ = 221453568.

The previous prime is 685050169. The next prime is 685050203. The reversal of 685050192 is 291050586.

It is a happy number.

685050192 is a `hidden beast` number, since 68 + 5 + 0 + 501 + 92 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 859138 + ... + 859934.

Almost surely, 2^685050192 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 685050192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (987936768).

685050192 is an abundant number, since it is smaller than the sum of its proper divisors (1290823344).

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

685050192 is a wasteful number, since it uses less digits than its factorization.

685050192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 985 (or 976 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The square root of 685050192 is about 26173.4635079120. The cubic root of 685050192 is about 881.5375118615.

The spelling of 685050192 in words is "six hundred eighty-five million, fifty thousand, one hundred ninety-two".