461686 has 16 divisors (see below), whose sum is σ = 755136. Its totient is φ = 210816.

The previous prime is 461677. The next prime is 461687. The reversal of 461686 is 686164.

461686 = 69² + 70² + ... + 119².

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (461687) 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 7 ways as a sum of consecutive naturals, for example, 1075 + ... + 1441.

It is an arithmetic number, because the mean of its divisors is an integer number (47196).

2⁴⁶¹⁶⁸⁶ is an apocalyptic number.

461686 is a deficient number, since it is larger than the sum of its proper divisors (293450).

461686 is a wasteful number, since it uses less digits than its factorization.

461686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423.

The product of its digits is 6912, while the sum is 31.

The square root of 461686 is about 679.4747971779. The cubic root of 461686 is about 77.2886227549.

The spelling of 461686 in words is "four hundred sixty-one thousand, six hundred eighty-six".