805663500 has 96 divisors (see below), whose sum is σ = 2427122880. Its totient is φ = 207424000.

The previous prime is 805663457. The next prime is 805663501. The reversal of 805663500 is 5366508.

It is not an unprimeable number, because it can be changed into a prime (805663501) 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 31 ways as a sum of consecutive naturals, for example, 34240 + ... + 52760.

It is an arithmetic number, because the mean of its divisors is an integer number (25282530).

Almost surely, 2^805663500 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 805663500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1213561440).

805663500 is an abundant number, since it is smaller than the sum of its proper divisors (1621459380).

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

805663500 is a wasteful number, since it uses less digits than its factorization.

805663500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18572 (or 18560 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 805663500 is about 28384.2121609884. The cubic root of 805663500 is about 930.5032540426.

The spelling of 805663500 in words is "eight hundred five million, six hundred sixty-three thousand, five hundred".