685533357 has 12 divisors (see below), whose sum is σ = 1042331680. Its totient is φ = 432968328.

The previous prime is 685533307. The next prime is 685533367. The reversal of 685533357 is 753335586.

685533357 is a `hidden beast` number, since 6 + 85 + 533 + 35 + 7 = 666.

685533357 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 685533357 - 2¹² = 685529261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (685533307) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2004313 + ... + 2004654.

Almost surely, 2^685533357 is an apocalyptic number.

It is an amenable number.

685533357 is a deficient number, since it is larger than the sum of its proper divisors (356798323).

685533357 is a wasteful number, since it uses less digits than its factorization.

685533357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4008992 (or 4008989 counting only the distinct ones).

The product of its digits is 1134000, while the sum is 45.

The square root of 685533357 is about 26182.6919357044. The cubic root of 685533357 is about 881.7447122392.

The spelling of 685533357 in words is "six hundred eighty-five million, five hundred thirty-three thousand, three hundred fifty-seven".