800488021 has 4 divisors (see below), whose sum is σ = 835291872. Its totient is φ = 765684172.

The previous prime is 800487979. The next prime is 800488099. The reversal of 800488021 is 120884008.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 800488021 - 2²¹ = 798390869 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 (800488321) 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, 17401891 + ... + 17401936.

It is an arithmetic number, because the mean of its divisors is an integer number (208822968).

Almost surely, 2^800488021 is an apocalyptic number.

It is an amenable number.

800488021 is a deficient number, since it is larger than the sum of its proper divisors (34803851).

800488021 is a wasteful number, since it uses less digits than its factorization.

800488021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34803850.

The product of its (nonzero) digits is 4096, while the sum is 31.

The square root of 800488021 is about 28292.8970061392. The cubic root of 800488021 is about 928.5064944202.

The spelling of 800488021 in words is "eight hundred million, four hundred eighty-eight thousand, twenty-one".