685379675 has 12 divisors (see below), whose sum is σ = 872841456. Its totient is φ = 533484000.

The previous prime is 685379579. The next prime is 685379711. The reversal of 685379675 is 576973586.

It is not a de Polignac number, because 685379675 - 2¹⁴ = 685363291 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 685379675.

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 11 ways as a sum of consecutive naturals, for example, 369551 + ... + 371400.

It is an arithmetic number, because the mean of its divisors is an integer number (72736788).

Almost surely, 2^685379675 is an apocalyptic number.

685379675 is a deficient number, since it is larger than the sum of its proper divisors (187461781).

685379675 is a wasteful number, since it uses less digits than its factorization.

685379675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 740998 (or 740993 counting only the distinct ones).

The product of its digits is 9525600, while the sum is 56.

The square root of 685379675 is about 26179.7569698422. The cubic root of 685379675 is about 881.6788178439.

The spelling of 685379675 in words is "six hundred eighty-five million, three hundred seventy-nine thousand, six hundred seventy-five".