800780799 has 64 divisors (see below), whose sum is σ = 1393136640. Its totient is φ = 397716480.

The previous prime is 800780797. The next prime is 800780833. The reversal of 800780799 is 997087008.

It is not a de Polignac number, because 800780799 - 2¹ = 800780797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (800780797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 323364 + ... + 325830.

It is an arithmetic number, because the mean of its divisors is an integer number (21767760).

Almost surely, 2^800780799 is an apocalyptic number.

800780799 is a deficient number, since it is larger than the sum of its proper divisors (592355841).

800780799 is a wasteful number, since it uses less digits than its factorization.

800780799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2560.

The product of its (nonzero) digits is 254016, while the sum is 48.

The square root of 800780799 is about 28298.0705879394. The cubic root of 800780799 is about 928.6196808479.

The spelling of 800780799 in words is "eight hundred million, seven hundred eighty thousand, seven hundred ninety-nine".