3804805 has 4 divisors (see below), whose sum is σ = 4565772. Its totient is φ = 3043840.

The previous prime is 3804799. The next prime is 3804811. The reversal of 3804805 is 5084083.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5084083 = 523 ⋅9721.

It is an interprime number because it is at equal distance from previous prime (3804799) and next prime (3804811).

It can be written as a sum of positive squares in 2 ways, for example, as 543169 + 3261636 = 737^2 + 1806^2 .

It is not a de Polignac number, because 3804805 - 2³ = 3804797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 380476 + ... + 380485.

It is an arithmetic number, because the mean of its divisors is an integer number (1141443).

Almost surely, 2^3804805 is an apocalyptic number.

It is an amenable number.

3804805 is a deficient number, since it is larger than the sum of its proper divisors (760967).

3804805 is an equidigital number, since it uses as much as digits as its factorization.

3804805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 760966.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 3804805 is about 1950.5909361012. The cubic root of 3804805 is about 156.1148206837.

Adding to 3804805 its reverse (5084083), we get a palindrome (8888888).

The spelling of 3804805 in words is "three million, eight hundred four thousand, eight hundred five".