685459337 has 4 divisors (see below), whose sum is σ = 686074116. Its totient is φ = 684844560.

The previous prime is 685459309. The next prime is 685459339. The reversal of 685459337 is 733954586.

685459337 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 132457081 + 553002256 = 11509^2 + 23516^2 .

It is a cyclic number.

It is not a de Polignac number, because 685459337 - 2⁶ = 685459273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (685459339) 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, 305714 + ... + 307947.

It is an arithmetic number, because the mean of its divisors is an integer number (171518529).

Almost surely, 2^685459337 is an apocalyptic number.

It is an amenable number.

685459337 is a deficient number, since it is larger than the sum of its proper divisors (614779).

685459337 is a wasteful number, since it uses less digits than its factorization.

685459337 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 614778.

The product of its digits is 2721600, while the sum is 50.

The square root of 685459337 is about 26181.2783683303. The cubic root of 685459337 is about 881.7129758342.

The spelling of 685459337 in words is "six hundred eighty-five million, four hundred fifty-nine thousand, three hundred thirty-seven".