800266863 has 16 divisors (see below), whose sum is σ = 1165306752. Its totient is φ = 484476000.

The previous prime is 800266811. The next prime is 800266879. The reversal of 800266863 is 368662008.

It is not a de Polignac number, because 800266863 - 2⁶ = 800266799 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (800266963) 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 15 ways as a sum of consecutive naturals, for example, 18168 + ... + 43938.

It is an arithmetic number, because the mean of its divisors is an integer number (72831672).

Almost surely, 2^800266863 is an apocalyptic number.

800266863 is a deficient number, since it is larger than the sum of its proper divisors (365039889).

800266863 is a wasteful number, since it uses less digits than its factorization.

800266863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26726.

The product of its (nonzero) digits is 82944, while the sum is 39.

The square root of 800266863 is about 28288.9883700354. The cubic root of 800266863 is about 928.4209776072.

The spelling of 800266863 in words is "eight hundred million, two hundred sixty-six thousand, eight hundred sixty-three".