481891 has 4 divisors (see below), whose sum is σ = 492192. Its totient is φ = 471592.

The previous prime is 481883. The next prime is 481909. The reversal of 481891 is 198184.

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 481891 - 2³ = 481883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (481801) 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, 5080 + ... + 5173.

It is an arithmetic number, because the mean of its divisors is an integer number (123048).

2⁴⁸¹⁸⁹¹ is an apocalyptic number.

481891 is a deficient number, since it is larger than the sum of its proper divisors (10301).

481891 is a wasteful number, since it uses less digits than its factorization.

481891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10300.

The product of its digits is 2304, while the sum is 31.

The square root of 481891 is about 694.1836932686. The cubic root of 481891 is about 78.4000377447.

The spelling of 481891 in words is "four hundred eighty-one thousand, eight hundred ninety-one".