806047 has 4 divisors (see below), whose sum is σ = 879336. Its totient is φ = 732760.

The previous prime is 806041. The next prime is 806051. The reversal of 806047 is 740608.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-806047 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 (806041) 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, 36628 + ... + 36649.

It is an arithmetic number, because the mean of its divisors is an integer number (219834).

2⁸⁰⁶⁰⁴⁷ is an apocalyptic number.

806047 is a deficient number, since it is larger than the sum of its proper divisors (73289).

806047 is a wasteful number, since it uses less digits than its factorization.

806047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73288.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 806047 is about 897.8012029397. The cubic root of 806047 is about 93.0650872079.

The spelling of 806047 in words is "eight hundred six thousand, forty-seven".