685848427 has 8 divisors (see below), whose sum is σ = 758737152. Its totient is φ = 614716200.

The previous prime is 685848421. The next prime is 685848439. The reversal of 685848427 is 724848586.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-685848427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (685848421) 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, 438303 + ... + 439864.

It is an arithmetic number, because the mean of its divisors is an integer number (94842144).

Almost surely, 2^685848427 is an apocalyptic number.

685848427 is a deficient number, since it is larger than the sum of its proper divisors (72888725).

685848427 is a wasteful number, since it uses less digits than its factorization.

685848427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 878249.

The product of its digits is 3440640, while the sum is 52.

The square root of 685848427 is about 26188.7080055508. The cubic root of 685848427 is about 881.8797743550.

The spelling of 685848427 in words is "six hundred eighty-five million, eight hundred forty-eight thousand, four hundred twenty-seven".