3085805 has 4 divisors (see below), whose sum is σ = 3702972. Its totient is φ = 2468640.

The previous prime is 3085793. The next prime is 3085813. The reversal of 3085805 is 5085803.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 310249 + 2775556 = 557^2 + 1666^2 .

It is not a de Polignac number, because 3085805 - 2⁶ = 3085741 is a prime.

It is a Duffinian number.

It is a Curzon 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, 308576 + ... + 308585.

It is an arithmetic number, because the mean of its divisors is an integer number (925743).

Almost surely, 2^3085805 is an apocalyptic number.

It is an amenable number.

3085805 is a deficient number, since it is larger than the sum of its proper divisors (617167).

3085805 is an equidigital number, since it uses as much as digits as its factorization.

3085805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 617166.

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 3085805 is about 1756.6459518070. The cubic root of 3085805 is about 145.5870768277.

The spelling of 3085805 in words is "three million, eighty-five thousand, eight hundred five".