686482858 has 8 divisors (see below), whose sum is σ = 1035060228. Its totient is φ = 341462784.

The previous prime is 686482781. The next prime is 686482861. The reversal of 686482858 is 858284686.

It can be written as a sum of positive squares in 2 ways, for example, as 618865129 + 67617729 = 24877^2 + 8223^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 686482799 and 686482808.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 888841 + ... + 889612.

Almost surely, 2^686482858 is an apocalyptic number.

686482858 is a deficient number, since it is larger than the sum of its proper divisors (348577370).

686482858 is a wasteful number, since it uses less digits than its factorization.

686482858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1778648.

The product of its digits is 5898240, while the sum is 55.

The square root of 686482858 is about 26200.8178879973. The cubic root of 686482858 is about 882.1516125717.

The spelling of 686482858 in words is "six hundred eighty-six million, four hundred eighty-two thousand, eight hundred fifty-eight".