803805849 has 216 divisors, whose sum is σ = 1707477408. Its totient is φ = 372314880.

The previous prime is 803805841. The next prime is 803805853. The reversal of 803805849 is 948508308.

It is not a de Polignac number, because 803805849 - 2³ = 803805841 is a prime.

It is a super-2 number, since 2×803805849² = 1292207685773221602, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (803805841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 215 ways as a sum of consecutive naturals, for example, 42305562 + ... + 42305580.

It is an arithmetic number, because the mean of its divisors is an integer number (7904988).

Almost surely, 2^803805849 is an apocalyptic number.

It is an amenable number.

803805849 is an abundant number, since it is smaller than the sum of its proper divisors (903671559).

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

803805849 is a wasteful number, since it uses less digits than its factorization.

803805849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95 (or 57 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The square root of 803805849 is about 28351.4699618909. The cubic root of 803805849 is about 929.7875373137.

The spelling of 803805849 in words is "eight hundred three million, eight hundred five thousand, eight hundred forty-nine".