685107333 has 6 divisors (see below), whose sum is σ = 989599494. Its totient is φ = 456738216.

The previous prime is 685107323. The next prime is 685107389. The reversal of 685107333 is 333701586.

It can be written as a sum of positive squares in only one way, i.e., 516289284 + 168818049 = 22722^2 + 12993^2 .

It is a de Polignac number, because none of the positive numbers 2^k-685107333 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (685107323) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 38061510 + ... + 38061527.

It is an arithmetic number, because the mean of its divisors is an integer number (164933249).

Almost surely, 2^685107333 is an apocalyptic number.

It is an amenable number.

685107333 is a deficient number, since it is larger than the sum of its proper divisors (304492161).

685107333 is a wasteful number, since it uses less digits than its factorization.

685107333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76123043 (or 76123040 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 685107333 is about 26174.5550678517. Note that the first 3 decimals coincide. The cubic root of 685107333 is about 881.5620212746.

The spelling of 685107333 in words is "six hundred eighty-five million, one hundred seven thousand, three hundred thirty-three".