461816 has 8 divisors (see below), whose sum is σ = 865920. Its totient is φ = 230904.

The previous prime is 461803. The next prime is 461819. The reversal of 461816 is 618164.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (461819) by changing a digit.

461816 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 (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28856 + ... + 28871.

It is an arithmetic number, because the mean of its divisors is an integer number (108240).

2⁴⁶¹⁸¹⁶ is an apocalyptic number.

It is an amenable number.

461816 is a deficient number, since it is larger than the sum of its proper divisors (404104).

461816 is a wasteful number, since it uses less digits than its factorization.

461816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57733 (or 57729 counting only the distinct ones).

The product of its digits is 1152, while the sum is 26.

The square root of 461816 is about 679.5704525654. The cubic root of 461816 is about 77.2958762981.

The spelling of 461816 in words is "four hundred sixty-one thousand, eight hundred sixteen".