685046159 has 8 divisors (see below), whose sum is σ = 824115840. Its totient is φ = 556277976.

The previous prime is 685046137. The next prime is 685046183. The reversal of 685046159 is 951640586.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 685046159 - 2⁸ = 685045903 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 (685046189) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2575229 + ... + 2575494.

It is an arithmetic number, because the mean of its divisors is an integer number (103014480).

Almost surely, 2^685046159 is an apocalyptic number.

685046159 is a deficient number, since it is larger than the sum of its proper divisors (139069681).

685046159 is a wasteful number, since it uses less digits than its factorization.

685046159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5150749.

The product of its (nonzero) digits is 259200, while the sum is 44.

The square root of 685046159 is about 26173.3864641166. The cubic root of 685046159 is about 881.5357819407.

The spelling of 685046159 in words is "six hundred eighty-five million, forty-six thousand, one hundred fifty-nine".