801599803 has 4 divisors (see below), whose sum is σ = 803009160. Its totient is φ = 800190448.

The previous prime is 801599791. The next prime is 801599839. The reversal of 801599803 is 308995108.

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 801599803 - 2²¹ = 799502651 is a prime.

It is a super-3 number, since 3×801599803³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 801599803.

It is not an unprimeable number, because it can be changed into a prime (801599863) 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, 703825 + ... + 704962.

It is an arithmetic number, because the mean of its divisors is an integer number (200752290).

Almost surely, 2^801599803 is an apocalyptic number.

801599803 is a deficient number, since it is larger than the sum of its proper divisors (1409357).

801599803 is a wasteful number, since it uses less digits than its factorization.

801599803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1409356.

The product of its (nonzero) digits is 77760, while the sum is 43.

The square root of 801599803 is about 28312.5379116744. The cubic root of 801599803 is about 928.9361570079.

The spelling of 801599803 in words is "eight hundred one million, five hundred ninety-nine thousand, eight hundred three".