800790863 has 4 divisors (see below), whose sum is σ = 801964008. Its totient is φ = 799617720.

The previous prime is 800790857. The next prime is 800790869. The reversal of 800790863 is 368097008.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (800790857) and next prime (800790869).

It is a cyclic number.

It is not a de Polignac number, because 800790863 - 2⁶ = 800790799 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 800790863.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (800790869) 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, 585548 + ... + 586913.

It is an arithmetic number, because the mean of its divisors is an integer number (200491002).

Almost surely, 2^800790863 is an apocalyptic number.

800790863 is a deficient number, since it is larger than the sum of its proper divisors (1173145).

800790863 is a wasteful number, since it uses less digits than its factorization.

800790863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1173144.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 800790863 is about 28298.2484086913. The cubic root of 800790863 is about 928.6235710466.

The spelling of 800790863 in words is "eight hundred million, seven hundred ninety thousand, eight hundred sixty-three".