685007029 has 16 divisors (see below), whose sum is σ = 788514048. Its totient is φ = 582930432.

The previous prime is 685007009. The next prime is 685007039. The reversal of 685007029 is 920700586.

It is not a de Polignac number, because 685007029 - 2⁷ = 685006901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (685007009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 904519 + ... + 905275.

It is an arithmetic number, because the mean of its divisors is an integer number (49282128).

Almost surely, 2^685007029 is an apocalyptic number.

It is an amenable number.

685007029 is a deficient number, since it is larger than the sum of its proper divisors (103507019).

685007029 is a wasteful number, since it uses less digits than its factorization.

685007029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1524.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 685007029 is about 26172.6389384028. The cubic root of 685007029 is about 881.5189971097.

The spelling of 685007029 in words is "six hundred eighty-five million, seven thousand, twenty-nine".