685235354 has 32 divisors (see below), whose sum is σ = 1106811216. Its totient is φ = 317030400.

The previous prime is 685235339. The next prime is 685235363. The reversal of 685235354 is 453532586.

It can be written as a sum of positive squares in 8 ways, for example, as 335732329 + 349503025 = 18323^2 + 18695^2 .

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 569954 + ... + 571154.

Almost surely, 2^685235354 is an apocalyptic number.

685235354 is a deficient number, since it is larger than the sum of its proper divisors (421575862).

685235354 is a wasteful number, since it uses less digits than its factorization.

685235354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1490.

The product of its digits is 432000, while the sum is 41.

The square root of 685235354 is about 26177.0004775184. Note that the first 3 decimals coincide. The cubic root of 685235354 is about 881.6169282053.

The spelling of 685235354 in words is "six hundred eighty-five million, two hundred thirty-five thousand, three hundred fifty-four".