806622720 has 160 divisors (see below), whose sum is σ = 2602119168. Its totient is φ = 213147648.

The previous prime is 806622701. The next prime is 806622737. The reversal of 806622720 is 27226608.

It is a tau number, because it is divible by the number of its divisors (160).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 974947 + ... + 975773.

Almost surely, 2^806622720 is an apocalyptic number.

806622720 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 806622720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1301059584).

806622720 is an abundant number, since it is smaller than the sum of its proper divisors (1795496448).

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

806622720 is a wasteful number, since it uses less digits than its factorization.

806622720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 980 (or 964 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 806622720 is about 28401.1042038862. The cubic root of 806622720 is about 930.8723921671.

The spelling of 806622720 in words is "eight hundred six million, six hundred twenty-two thousand, seven hundred twenty".