685700329 has 16 divisors (see below), whose sum is σ = 743008000. Its totient is φ = 630789120.

The previous prime is 685700299. The next prime is 685700339. The reversal of 685700329 is 923007586.

It is a cyclic number.

It is not a de Polignac number, because 685700329 - 2⁵ = 685700297 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 685700291 and 685700300.

It is not an unprimeable number, because it can be changed into a prime (685700339) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87817 + ... + 95305.

It is an arithmetic number, because the mean of its divisors is an integer number (46438000).

Almost surely, 2^685700329 is an apocalyptic number.

It is an amenable number.

685700329 is a deficient number, since it is larger than the sum of its proper divisors (57307671).

685700329 is a wasteful number, since it uses less digits than its factorization.

685700329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7648.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 685700329 is about 26185.8803365478. The cubic root of 685700329 is about 881.8162938407.

The spelling of 685700329 in words is "six hundred eighty-five million, seven hundred thousand, three hundred twenty-nine".