686064662 has 8 divisors (see below), whose sum is σ = 1031902176. Its totient is φ = 342097272.

The previous prime is 686064661. The next prime is 686064667. The reversal of 686064662 is 266460686.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (686064661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 466613 + ... + 468080.

It is an arithmetic number, because the mean of its divisors is an integer number (128987772).

Almost surely, 2^686064662 is an apocalyptic number.

686064662 is a deficient number, since it is larger than the sum of its proper divisors (345837514).

686064662 is a wasteful number, since it uses less digits than its factorization.

686064662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 935062.

The product of its (nonzero) digits is 497664, while the sum is 44.

The square root of 686064662 is about 26192.8360816464. The cubic root of 686064662 is about 881.9724446051.

The spelling of 686064662 in words is "six hundred eighty-six million, sixty-four thousand, six hundred sixty-two".