800865793 has 16 divisors (see below), whose sum is σ = 987477120. Its totient is φ = 632497536.

The previous prime is 800865787. The next prime is 800865803. The reversal of 800865793 is 397568008.

It is a cyclic number.

It is not a de Polignac number, because 800865793 - 2⁹ = 800865281 is a prime.

It is not an unprimeable number, because it can be changed into a prime (800865743) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44046 + ... + 59512.

It is an arithmetic number, because the mean of its divisors is an integer number (61717320).

Almost surely, 2^800865793 is an apocalyptic number.

It is an amenable number.

800865793 is a deficient number, since it is larger than the sum of its proper divisors (186611327).

800865793 is a wasteful number, since it uses less digits than its factorization.

800865793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16056.

The product of its (nonzero) digits is 362880, while the sum is 46.

The square root of 800865793 is about 28299.5723112559. The cubic root of 800865793 is about 928.6525339120.

The spelling of 800865793 in words is "eight hundred million, eight hundred sixty-five thousand, seven hundred ninety-three".