810481 has 4 divisors (see below), whose sum is σ = 926272. Its totient is φ = 694692.

The previous prime is 810473. The next prime is 810487. The reversal of 810481 is 184018.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 184018 = 2 ⋅92009.

It is a cyclic number.

It is not a de Polignac number, because 810481 - 2³ = 810473 is a prime.

It is a super-2 number, since 2×810481² = 1313758902722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (810487) 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, 57885 + ... + 57898.

It is an arithmetic number, because the mean of its divisors is an integer number (231568).

2⁸¹⁰⁴⁸¹ is an apocalyptic number.

It is an amenable number.

810481 is a deficient number, since it is larger than the sum of its proper divisors (115791).

810481 is a wasteful number, since it uses less digits than its factorization.

810481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115790.

The product of its (nonzero) digits is 256, while the sum is 22.

The square root of 810481 is about 900.2671825630. The cubic root of 810481 is about 93.2354231180.

Adding to 810481 its reverse (184018), we get a palindrome (994499).

The spelling of 810481 in words is "eight hundred ten thousand, four hundred eighty-one".