685069574 has 16 divisors (see below), whose sum is σ = 1203050016. Its totient is φ = 286440000.

The previous prime is 685069549. The next prime is 685069613. The reversal of 685069574 is 475960586.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 596177 + ... + 597324.

It is an arithmetic number, because the mean of its divisors is an integer number (75190626).

Almost surely, 2^685069574 is an apocalyptic number.

685069574 is a deficient number, since it is larger than the sum of its proper divisors (517980442).

685069574 is a wasteful number, since it uses less digits than its factorization.

685069574 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1193551.

The product of its (nonzero) digits is 1814400, while the sum is 50.

The square root of 685069574 is about 26173.8337658051. The cubic root of 685069574 is about 881.5458255097.

The spelling of 685069574 in words is "six hundred eighty-five million, sixty-nine thousand, five hundred seventy-four".