806721200 has 60 divisors (see below), whose sum is σ = 1946832240. Its totient is φ = 321242880.

The previous prime is 806721199. The next prime is 806721263. The reversal of 806721200 is 2127608.

It is a self number, because there is not a number n which added to its sum of digits gives 806721200.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 87197 + ... + 96003.

It is an arithmetic number, because the mean of its divisors is an integer number (32447204).

Almost surely, 2^806721200 is an apocalyptic number.

806721200 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 806721200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (973416120).

806721200 is an abundant number, since it is smaller than the sum of its proper divisors (1140111040).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

806721200 is a wasteful number, since it uses less digits than its factorization.

806721200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9054 (or 9043 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 806721200 is about 28402.8378863803. The cubic root of 806721200 is about 930.9102738105.

Adding to 806721200 its reverse (2127608), we get a palindrome (808848808).

The spelling of 806721200 in words is "eight hundred six million, seven hundred twenty-one thousand, two hundred".