812801 has 8 divisors (see below), whose sum is σ = 933600. Its totient is φ = 699840.

The previous prime is 812761. The next prime is 812807. The reversal of 812801 is 108218.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 812801 - 2¹⁰ = 811777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (812807) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1736 + ... + 2153.

It is an arithmetic number, because the mean of its divisors is an integer number (116700).

2⁸¹²⁸⁰¹ is an apocalyptic number.

It is an amenable number.

812801 is a deficient number, since it is larger than the sum of its proper divisors (120799).

812801 is a wasteful number, since it uses less digits than its factorization.

812801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3919.

The product of its (nonzero) digits is 128, while the sum is 20.

The square root of 812801 is about 901.5547681644. The cubic root of 812801 is about 93.3243004297.

It can be divided in two parts, 81 and 2801, that added together give a palindrome (2882).

The spelling of 812801 in words is "eight hundred twelve thousand, eight hundred one".