686467 has 4 divisors (see below), whose sum is σ = 688176. Its totient is φ = 684760.

The previous prime is 686453. The next prime is 686473. The reversal of 686467 is 764686.

686467 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 686467 - 2⁷ = 686339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (686417) 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, 117 + ... + 1177.

It is an arithmetic number, because the mean of its divisors is an integer number (172044).

2⁶⁸⁶⁴⁶⁷ is an apocalyptic number.

686467 is a deficient number, since it is larger than the sum of its proper divisors (1709).

686467 is a wasteful number, since it uses less digits than its factorization.

686467 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1708.

The product of its digits is 48384, while the sum is 37.

The square root of 686467 is about 828.5330409827. The cubic root of 686467 is about 88.2144819847.

The spelling of 686467 in words is "six hundred eighty-six thousand, four hundred sixty-seven".