686280466 has 8 divisors (see below), whose sum is σ = 1029720780. Its totient is φ = 343040208.

The previous prime is 686280461. The next prime is 686280481. The reversal of 686280466 is 664082686.

It can be written as a sum of positive squares in 2 ways, for example, as 596580625 + 89699841 = 24425^2 + 9471^2 .

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 (686280461) 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, 41121 + ... + 55348.

Almost surely, 2^686280466 is an apocalyptic number.

686280466 is a deficient number, since it is larger than the sum of its proper divisors (343440314).

686280466 is a wasteful number, since it uses less digits than its factorization.

686280466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100028.

The product of its (nonzero) digits is 663552, while the sum is 46.

The square root of 686280466 is about 26196.9552811009. The cubic root of 686280466 is about 882.0649107330.

The spelling of 686280466 in words is "six hundred eighty-six million, two hundred eighty thousand, four hundred sixty-six".