800216783 has 4 divisors (see below), whose sum is σ = 817242720. Its totient is φ = 783190848.

The previous prime is 800216777. The next prime is 800216819. The reversal of 800216783 is 387612008.

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

It is a cyclic number.

It is not a de Polignac number, because 800216783 - 2⁶ = 800216719 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 (800216383) 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, 8512898 + ... + 8512991.

It is an arithmetic number, because the mean of its divisors is an integer number (204310680).

Almost surely, 2^800216783 is an apocalyptic number.

800216783 is a deficient number, since it is larger than the sum of its proper divisors (17025937).

800216783 is a wasteful number, since it uses less digits than its factorization.

800216783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17025936.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 800216783 is about 28288.1032061183. The cubic root of 800216783 is about 928.4016106124.

The spelling of 800216783 in words is "eight hundred million, two hundred sixteen thousand, seven hundred eighty-three".