685862427 has 16 divisors (see below), whose sum is σ = 944051328. Its totient is φ = 442646400.

The previous prime is 685862407. The next prime is 685862483. The reversal of 685862427 is 724268586.

685862427 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 685862427 - 2⁷ = 685862299 is a prime.

It is not an unprimeable number, because it can be changed into a prime (685862407) 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, 8949 + ... + 38102.

It is an arithmetic number, because the mean of its divisors is an integer number (59003208).

Almost surely, 2^685862427 is an apocalyptic number.

685862427 is a deficient number, since it is larger than the sum of its proper divisors (258188901).

685862427 is a wasteful number, since it uses less digits than its factorization.

685862427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47210.

The product of its digits is 1290240, while the sum is 48.

The square root of 685862427 is about 26188.9752949595. The cubic root of 685862427 is about 881.8857748221.

The spelling of 685862427 in words is "six hundred eighty-five million, eight hundred sixty-two thousand, four hundred twenty-seven".