8405801 has 4 divisors (see below), whose sum is σ = 8411604. Its totient is φ = 8400000.

The previous prime is 8405777. The next prime is 8405807. The reversal of 8405801 is 1085048.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 4405801 + 4000000 = 2099^2 + 2000^2 .

It is a cyclic number.

It is not a de Polignac number, because 8405801 - 2¹⁰ = 8404777 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8405807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1301 + ... + 4301.

It is an arithmetic number, because the mean of its divisors is an integer number (2102901).

Almost surely, 2^8405801 is an apocalyptic number.

It is an amenable number.

8405801 is a deficient number, since it is larger than the sum of its proper divisors (5803).

8405801 is a wasteful number, since it uses less digits than its factorization.

8405801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5802.

The product of its (nonzero) digits is 1280, while the sum is 26.

The square root of 8405801 is about 2899.2759440936. The cubic root of 8405801 is about 203.3260551607.

The spelling of 8405801 in words is "eight million, four hundred five thousand, eight hundred one".