800047 has 4 divisors (see below), whose sum is σ = 812056. Its totient is φ = 788040.

The previous prime is 800029. The next prime is 800053. The reversal of 800047 is 740008.

It is a happy number.

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 800047 - 2¹⁵ = 767279 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 799997 and 800033.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (800057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5904 + ... + 6037.

It is an arithmetic number, because the mean of its divisors is an integer number (203014).

2⁸⁰⁰⁰⁴⁷ is an apocalyptic number.

800047 is a deficient number, since it is larger than the sum of its proper divisors (12009).

800047 is a wasteful number, since it uses less digits than its factorization.

800047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12008.

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 800047 is about 894.4534644128. The cubic root of 800047 is about 92.8335945923.

The spelling of 800047 in words is "eight hundred thousand, forty-seven".