805804895 has 16 divisors (see below), whose sum is σ = 1128619008. Its totient is φ = 540794400.

The previous prime is 805804891. The next prime is 805804903. The reversal of 805804895 is 598408508.

It is not a de Polignac number, because 805804895 - 2² = 805804891 is a prime.

It is a super-2 number, since 2×805804895² = 1298643057611922050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (805804891) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 243281 + ... + 246570.

It is an arithmetic number, because the mean of its divisors is an integer number (70538688).

Almost surely, 2^805804895 is an apocalyptic number.

805804895 is a deficient number, since it is larger than the sum of its proper divisors (322814113).

805804895 is a wasteful number, since it uses less digits than its factorization.

805804895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489910.

The product of its (nonzero) digits is 460800, while the sum is 47.

The square root of 805804895 is about 28386.7027849308. The cubic root of 805804895 is about 930.5576857052.

The spelling of 805804895 in words is "eight hundred five million, eight hundred four thousand, eight hundred ninety-five".