3865055 has 8 divisors (see below), whose sum is σ = 4746192. Its totient is φ = 3019968.

The previous prime is 3865019. The next prime is 3865063. The reversal of 3865055 is 5505683.

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 3865055 - 2¹² = 3860959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8774 + ... + 9203.

It is an arithmetic number, because the mean of its divisors is an integer number (593274).

Almost surely, 2^3865055 is an apocalyptic number.

3865055 is a deficient number, since it is larger than the sum of its proper divisors (881137).

3865055 is a wasteful number, since it uses less digits than its factorization.

3865055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18025.

The product of its (nonzero) digits is 18000, while the sum is 32.

The square root of 3865055 is about 1965.9743131587. The cubic root of 3865055 is about 156.9345474800.

The spelling of 3865055 in words is "three million, eight hundred sixty-five thousand, fifty-five".