685339833 has 4 divisors (see below), whose sum is σ = 913786448. Its totient is φ = 456893220.

The previous prime is 685339813. The next prime is 685339849. The reversal of 685339833 is 338933586.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 685339833 - 2⁶ = 685339769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (685339813) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114223303 + ... + 114223308.

It is an arithmetic number, because the mean of its divisors is an integer number (228446612).

Almost surely, 2^685339833 is an apocalyptic number.

It is an amenable number.

685339833 is a deficient number, since it is larger than the sum of its proper divisors (228446615).

685339833 is a wasteful number, since it uses less digits than its factorization.

685339833 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228446614.

The product of its digits is 1399680, while the sum is 48.

The square root of 685339833 is about 26178.9960273499. The cubic root of 685339833 is about 881.6617331391.

The spelling of 685339833 in words is "six hundred eighty-five million, three hundred thirty-nine thousand, eight hundred thirty-three".