800216647 has 8 divisors (see below), whose sum is σ = 812138400. Its totient is φ = 788313120.

The previous prime is 800216629. The next prime is 800216653. The reversal of 800216647 is 746612008.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 800216647 - 2⁷ = 800216519 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 (800216047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102229 + ... + 109777.

It is an arithmetic number, because the mean of its divisors is an integer number (101517300).

Almost surely, 2^800216647 is an apocalyptic number.

800216647 is a deficient number, since it is larger than the sum of its proper divisors (11921753).

800216647 is a wasteful number, since it uses less digits than its factorization.

800216647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9113.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 800216647 is about 28288.1008022808. The cubic root of 800216647 is about 928.4015580172.

It can be divided in two parts, 80021 and 6647, that added together give a palindrome (86668).

The spelling of 800216647 in words is "eight hundred million, two hundred sixteen thousand, six hundred forty-seven".