805855828 has 48 divisors (see below), whose sum is σ = 1554577920. Its totient is φ = 363808256.

The previous prime is 805855823. The next prime is 805855837. The reversal of 805855828 is 828558508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (805855823) 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, 328101 + ... + 330547.

It is an arithmetic number, because the mean of its divisors is an integer number (32387040).

Almost surely, 2^805855828 is an apocalyptic number.

It is an amenable number.

805855828 is a deficient number, since it is larger than the sum of its proper divisors (748722092).

805855828 is a wasteful number, since it uses less digits than its factorization.

805855828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2664 (or 2662 counting only the distinct ones).

The product of its (nonzero) digits is 1024000, while the sum is 49.

The square root of 805855828 is about 28387.5998985473. The cubic root of 805855828 is about 930.5772914006.

The spelling of 805855828 in words is "eight hundred five million, eight hundred fifty-five thousand, eight hundred twenty-eight".