800248809 has 4 divisors (see below), whose sum is σ = 1066998416. Its totient is φ = 533499204.

The previous prime is 800248807. The next prime is 800248829. The reversal of 800248809 is 908842008.

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 not a de Polignac number, because 800248809 - 2¹ = 800248807 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (800248807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133374799 + ... + 133374804.

It is an arithmetic number, because the mean of its divisors is an integer number (266749604).

Almost surely, 2^800248809 is an apocalyptic number.

It is an amenable number.

800248809 is a deficient number, since it is larger than the sum of its proper divisors (266749607).

800248809 is a wasteful number, since it uses less digits than its factorization.

800248809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266749606.

The product of its (nonzero) digits is 36864, while the sum is 39.

The square root of 800248809 is about 28288.6692688080. The cubic root of 800248809 is about 928.4139958368.

The spelling of 800248809 in words is "eight hundred million, two hundred forty-eight thousand, eight hundred nine".