481811 has 4 divisors (see below), whose sum is σ = 525624. Its totient is φ = 438000.

The previous prime is 481807. The next prime is 481813. The reversal of 481811 is 118184.

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 481811 - 2² = 481807 is a prime.

It is not an unprimeable number, because it can be changed into a prime (481813) 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, 21890 + ... + 21911.

It is an arithmetic number, because the mean of its divisors is an integer number (131406).

2⁴⁸¹⁸¹¹ is an apocalyptic number.

481811 is a deficient number, since it is larger than the sum of its proper divisors (43813).

481811 is a wasteful number, since it uses less digits than its factorization.

481811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43812.

The product of its digits is 256, while the sum is 23.

The square root of 481811 is about 694.1260692410. The cubic root of 481811 is about 78.3956990387.

Adding to 481811 its reverse (118184), we get a palindrome (599995).

The spelling of 481811 in words is "four hundred eighty-one thousand, eight hundred eleven".