800722879 has 8 divisors (see below), whose sum is σ = 892101888. Its totient is φ = 712441560.

The previous prime is 800722873. The next prime is 800722891. The reversal of 800722879 is 978227008.

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 800722879 - 2⁹ = 800722367 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (800722873) 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, 773877 + ... + 774910.

It is an arithmetic number, because the mean of its divisors is an integer number (111512736).

Almost surely, 2^800722879 is an apocalyptic number.

800722879 is a deficient number, since it is larger than the sum of its proper divisors (91379009).

800722879 is a wasteful number, since it uses less digits than its factorization.

800722879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1548845.

The product of its (nonzero) digits is 112896, while the sum is 43.

The square root of 800722879 is about 28297.0471781068. The cubic root of 800722879 is about 928.5972914713.

The spelling of 800722879 in words is "eight hundred million, seven hundred twenty-two thousand, eight hundred seventy-nine".