800722881 has 32 divisors (see below), whose sum is σ = 1361203200. Its totient is φ = 455706000.

The previous prime is 800722873. The next prime is 800722891. The reversal of 800722881 is 188227008.

It is not a de Polignac number, because 800722881 - 2³ = 800722873 is a prime.

It is a super-2 number, since 2×800722881² = 1282314264313880322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (800722801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39000 + ... + 55878.

It is an arithmetic number, because the mean of its divisors is an integer number (42537600).

Almost surely, 2^800722881 is an apocalyptic number.

It is an amenable number.

800722881 is a deficient number, since it is larger than the sum of its proper divisors (560480319).

800722881 is a wasteful number, since it uses less digits than its factorization.

800722881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17146 (or 17140 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 36.

The square root of 800722881 is about 28297.0472134461. The cubic root of 800722881 is about 928.5972922444.

Adding to 800722881 its reverse (188227008), we get a palindrome (988949889).

The spelling of 800722881 in words is "eight hundred million, seven hundred twenty-two thousand, eight hundred eighty-one".