805921936 has 20 divisors (see below), whose sum is σ = 1643657200. Its totient is φ = 381752352.

The previous prime is 805921933. The next prime is 805921937. The reversal of 805921936 is 639129508.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 805921892 and 805921901.

It is not an unprimeable number, because it can be changed into a prime (805921933) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1325226 + ... + 1325833.

It is an arithmetic number, because the mean of its divisors is an integer number (82182860).

Almost surely, 2^805921936 is an apocalyptic number.

It is an amenable number.

805921936 is an abundant number, since it is smaller than the sum of its proper divisors (837735264).

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

805921936 is a wasteful number, since it uses less digits than its factorization.

805921936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2651086 (or 2651080 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 43.

The square root of 805921936 is about 28388.7642563039. The cubic root of 805921936 is about 930.6027371935.

It can be divided in two parts, 80592 and 1936, that added together give a palindrome (82528).

The spelling of 805921936 in words is "eight hundred five million, nine hundred twenty-one thousand, nine hundred thirty-six".