686755474 has 8 divisors (see below), whose sum is σ = 1030249008. Its totient is φ = 343339140.

The previous prime is 686755471. The next prime is 686755501. The reversal of 686755474 is 474557686.

686755474 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not an unprimeable number, because it can be changed into a prime (686755471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15469 + ... + 40159.

It is an arithmetic number, because the mean of its divisors is an integer number (128781126).

Almost surely, 2^686755474 is an apocalyptic number.

686755474 is a deficient number, since it is larger than the sum of its proper divisors (343493534).

686755474 is a wasteful number, since it uses less digits than its factorization.

686755474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38600.

The product of its digits is 5644800, while the sum is 52.

The square root of 686755474 is about 26206.0198046174. The cubic root of 686755474 is about 882.2683704358.

The spelling of 686755474 in words is "six hundred eighty-six million, seven hundred fifty-five thousand, four hundred seventy-four".