3866085 has 24 divisors (see below), whose sum is σ = 6831864. Its totient is φ = 2021760.

The previous prime is 3866081. The next prime is 3866099. The reversal of 3866085 is 5806683.

It can be written as a sum of positive squares in 4 ways, for example, as 1153476 + 2712609 = 1074^2 + 1647^2 .

It is not a de Polignac number, because 3866085 - 2² = 3866081 is a prime.

It is a super-2 number, since 2×3866085² = 29893226454450, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3866081) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1575 + ... + 3195.

It is an arithmetic number, because the mean of its divisors is an integer number (284661).

Almost surely, 2^3866085 is an apocalyptic number.

It is an amenable number.

3866085 is a deficient number, since it is larger than the sum of its proper divisors (2965779).

3866085 is a wasteful number, since it uses less digits than its factorization.

3866085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1685 (or 1682 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 3866085 is about 1966.2362523359. The cubic root of 3866085 is about 156.9484867579.

The spelling of 3866085 in words is "three million, eight hundred sixty-six thousand, eighty-five".