805766825 has 12 divisors (see below), whose sum is σ = 1020410880. Its totient is φ = 630897360.

The previous prime is 805766813. The next prime is 805766881. The reversal of 805766825 is 528667508.

It is not a de Polignac number, because 805766825 - 2⁶ = 805766761 is a prime.

It is a super-3 number, since 3×805766825³ (a number of 28 digits) contains 333 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 805766825.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 341705 + ... + 344054.

It is an arithmetic number, because the mean of its divisors is an integer number (85034240).

Almost surely, 2^805766825 is an apocalyptic number.

It is an amenable number.

805766825 is a deficient number, since it is larger than the sum of its proper divisors (214644055).

805766825 is a wasteful number, since it uses less digits than its factorization.

805766825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 685816 (or 685811 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 47.

The square root of 805766825 is about 28386.0322165674. The cubic root of 805766825 is about 930.5430308389.

The spelling of 805766825 in words is "eight hundred five million, seven hundred sixty-six thousand, eight hundred twenty-five".