800000801 has 4 divisors (see below), whose sum is σ = 807477552. Its totient is φ = 792524052.

The previous prime is 800000779. The next prime is 800000809. The reversal of 800000801 is 108000008.

It is a happy number.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-800000801 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 800000801.

It is not an unprimeable number, because it can be changed into a prime (800000809) 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, 3738215 + ... + 3738428.

It is an arithmetic number, because the mean of its divisors is an integer number (201869388).

Almost surely, 2^800000801 is an apocalyptic number.

It is an amenable number.

800000801 is a deficient number, since it is larger than the sum of its proper divisors (7476751).

800000801 is a wasteful number, since it uses less digits than its factorization.

800000801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7476750.

The product of its (nonzero) digits is 64, while the sum is 17.

The square root of 800000801 is about 28284.2854072716. The cubic root of 800000801 is about 928.3180765485.

Adding to 800000801 its reverse (108000008), we get a palindrome (908000809).

The spelling of 800000801 in words is "eight hundred million, eight hundred one", and thus it is an aban number.