3909065 has 8 divisors (see below), whose sum is σ = 4966920. Its totient is φ = 2943232.

The previous prime is 3909049. The next prime is 3909083. The reversal of 3909065 is 5609093.

It can be written as a sum of positive squares in 4 ways, for example, as 55696 + 3853369 = 236^2 + 1963^2 .

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 3909065 - 2⁴ = 3909049 is a prime.

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, 22910 + ... + 23079.

It is an arithmetic number, because the mean of its divisors is an integer number (620865).

Almost surely, 2^3909065 is an apocalyptic number.

It is an amenable number.

3909065 is a deficient number, since it is larger than the sum of its proper divisors (1057855).

3909065 is a wasteful number, since it uses less digits than its factorization.

3909065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46011.

The product of its (nonzero) digits is 7290, while the sum is 32.

The square root of 3909065 is about 1977.1355542805. The cubic root of 3909065 is about 157.5279533823.

The spelling of 3909065 in words is "three million, nine hundred nine thousand, sixty-five".