685833345 has 32 divisors (see below), whose sum is σ = 1225088640. Its totient is φ = 364029120.

The previous prime is 685833319. The next prime is 685833347. The reversal of 685833345 is 543338586.

685833345 is a `hidden beast` number, since 68 + 583 + 3 + 3 + 4 + 5 = 666.

It is not a de Polignac number, because 685833345 - 2¹⁰ = 685832321 is a prime.

It is a super-2 number, since 2×685833345² = 940734754227778050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 685833345.

It is not an unprimeable number, because it can be changed into a prime (685833347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16447 + ... + 40523.

It is an arithmetic number, because the mean of its divisors is an integer number (38284020).

Almost surely, 2^685833345 is an apocalyptic number.

It is an amenable number.

685833345 is a deficient number, since it is larger than the sum of its proper divisors (539255295).

685833345 is a wasteful number, since it uses less digits than its factorization.

685833345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24302 (or 24296 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 45.

The square root of 685833345 is about 26188.4200554367. The cubic root of 685833345 is about 881.8733100461.

The spelling of 685833345 in words is "six hundred eighty-five million, eight hundred thirty-three thousand, three hundred forty-five".