686462 has 8 divisors (see below), whose sum is σ = 1176816. Its totient is φ = 294192.

The previous prime is 686453. The next prime is 686473. The reversal of 686462 is 264686.

It is a happy number.

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

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 686462.

It is an unprimeable number.

686462 is an untouchable number, because it is not equal to the sum of proper divisors of any 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 3 ways as a sum of consecutive naturals, for example, 24503 + ... + 24530.

It is an arithmetic number, because the mean of its divisors is an integer number (147102).

2⁶⁸⁶⁴⁶² is an apocalyptic number.

686462 is a deficient number, since it is larger than the sum of its proper divisors (490354).

686462 is a wasteful number, since it uses less digits than its factorization.

686462 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49042.

The product of its digits is 13824, while the sum is 32.

The square root of 686462 is about 828.5300235960. The cubic root of 686462 is about 88.2142678090.

It can be divided in two parts, 6 and 86462, that added together give a palindrome (86468).

The spelling of 686462 in words is "six hundred eighty-six thousand, four hundred sixty-two".