685127607 has 8 divisors (see below), whose sum is σ = 923767920. Its totient is φ = 451619520.

The previous prime is 685127561. The next prime is 685127609. The reversal of 685127607 is 706721586.

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

It is not a de Polignac number, because 685127607 - 2⁶ = 685127543 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (685127609) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1282744 + ... + 1283277.

It is an arithmetic number, because the mean of its divisors is an integer number (115470990).

Almost surely, 2^685127607 is an apocalyptic number.

685127607 is a deficient number, since it is larger than the sum of its proper divisors (238640313).

685127607 is a wasteful number, since it uses less digits than its factorization.

685127607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2566113.

The product of its (nonzero) digits is 141120, while the sum is 42.

The square root of 685127607 is about 26174.9423495067. The cubic root of 685127607 is about 881.5707170469.

The spelling of 685127607 in words is "six hundred eighty-five million, one hundred twenty-seven thousand, six hundred seven".