3865085 has 8 divisors (see below), whose sum is σ = 5300736. Its totient is φ = 2650320.

The previous prime is 3865079. The next prime is 3865093. The reversal of 3865085 is 5805683.

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

It is not a de Polignac number, because 3865085 - 2⁸ = 3864829 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35), and also a Moran number because the ratio is a prime number: 110431 = 3865085 / (3 + 8 + 6 + 5 + 0 + 8 + 5).

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, 55181 + ... + 55250.

It is an arithmetic number, because the mean of its divisors is an integer number (662592).

Almost surely, 2^3865085 is an apocalyptic number.

3865085 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3865085 is a deficient number, since it is larger than the sum of its proper divisors (1435651).

3865085 is a wasteful number, since it uses less digits than its factorization.

3865085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110443.

The product of its (nonzero) digits is 28800, while the sum is 35.

The square root of 3865085 is about 1965.9819429486. The cubic root of 3865085 is about 156.9349535134.

The spelling of 3865085 in words is "three million, eight hundred sixty-five thousand, eighty-five".