3861617 has 8 divisors (see below), whose sum is σ = 4083360. Its totient is φ = 3651876.

The previous prime is 3861607. The next prime is 3861659. The reversal of 3861617 is 7161683.

It is not a de Polignac number, because 3861617 - 2¹⁸ = 3599473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3861607) by changing a digit.

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, 6578 + ... + 7140.

It is an arithmetic number, because the mean of its divisors is an integer number (510420).

Almost surely, 2^3861617 is an apocalyptic number.

It is an amenable number.

3861617 is a deficient number, since it is larger than the sum of its proper divisors (221743).

3861617 is an frugal number, since it uses more digits than its factorization.

3861617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 620 (or 582 counting only the distinct ones).

The product of its digits is 6048, while the sum is 32.

The square root of 3861617 is about 1965.0997430156. The cubic root of 3861617 is about 156.8880021286. Note that the first 3 decimals are identical.

The spelling of 3861617 in words is "three million, eight hundred sixty-one thousand, six hundred seventeen".