685241607 has 12 divisors (see below), whose sum is σ = 917407400. Its totient is φ = 454955712.

The previous prime is 685241597. The next prime is 685241617. The reversal of 685241607 is 706142586.

It is an interprime number because it is at equal distance from previous prime (685241597) and next prime (685241617).

It is not a de Polignac number, because 685241607 - 2²³ = 676852999 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 (685241617) 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 11 ways as a sum of consecutive naturals, for example, 846619 + ... + 847427.

Almost surely, 2^685241607 is an apocalyptic number.

685241607 is a deficient number, since it is larger than the sum of its proper divisors (232165793).

685241607 is an frugal number, since it uses more digits than its factorization.

685241607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1970 (or 1161 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 685241607 is about 26177.1199141540. The cubic root of 685241607 is about 881.6196098795.

The spelling of 685241607 in words is "six hundred eighty-five million, two hundred forty-one thousand, six hundred seven".