3865305 has 8 divisors (see below), whose sum is σ = 6184512. Its totient is φ = 2061488.

The previous prime is 3865289. The next prime is 3865321. The reversal of 3865305 is 5035683.

It is an interprime number because it is at equal distance from previous prime (3865289) and next prime (3865321).

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 3865305 - 2⁴ = 3865289 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128829 + ... + 128858.

It is an arithmetic number, because the mean of its divisors is an integer number (773064).

Almost surely, 2^3865305 is an apocalyptic number.

It is an amenable number.

3865305 is a deficient number, since it is larger than the sum of its proper divisors (2319207).

3865305 is a wasteful number, since it uses less digits than its factorization.

3865305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257695.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 3865305 is about 1966.0378938362. The cubic root of 3865305 is about 156.9379310274.

The spelling of 3865305 in words is "three million, eight hundred sixty-five thousand, three hundred five".