800780083 has 4 divisors (see below), whose sum is σ = 800862928. Its totient is φ = 800697240.

The previous prime is 800780059. The next prime is 800780089. The reversal of 800780083 is 380087008.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 800780083 - 2⁹ = 800779571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (800780089) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24663 + ... + 47008.

It is an arithmetic number, because the mean of its divisors is an integer number (200215732).

Almost surely, 2^800780083 is an apocalyptic number.

800780083 is a deficient number, since it is larger than the sum of its proper divisors (82845).

800780083 is a wasteful number, since it uses less digits than its factorization.

800780083 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82844.

The product of its (nonzero) digits is 10752, while the sum is 34.

The square root of 800780083 is about 28298.0579368974. The cubic root of 800780083 is about 928.6194040797.

The spelling of 800780083 in words is "eight hundred million, seven hundred eighty thousand, eighty-three".