3996305 has 8 divisors (see below), whose sum is σ = 4806312. Its totient is φ = 3189888.

The previous prime is 3996283. The next prime is 3996323. The reversal of 3996305 is 5036993.

It can be written as a sum of positive squares in 4 ways, for example, as 201601 + 3794704 = 449^2 + 1948^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3996305 - 2¹⁰ = 3995281 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3797 + ... + 4733.

It is an arithmetic number, because the mean of its divisors is an integer number (600789).

Almost surely, 2^3996305 is an apocalyptic number.

It is an amenable number.

3996305 is a deficient number, since it is larger than the sum of its proper divisors (810007).

3996305 is an equidigital number, since it uses as much as digits as its factorization.

3996305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1795.

The product of its (nonzero) digits is 21870, while the sum is 35.

The square root of 3996305 is about 1999.0760365729. The cubic root of 3996305 is about 158.6912114145.

The spelling of 3996305 in words is "three million, nine hundred ninety-six thousand, three hundred five".