3861315 has 24 divisors (see below), whose sum is σ = 6823440. Its totient is φ = 2019264.

The previous prime is 3861293. The next prime is 3861317. The reversal of 3861315 is 5131683.

3861315 is a `hidden beast` number, since 38 + 613 + 15 = 666.

It is not a de Polignac number, because 3861315 - 2⁶ = 3861251 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3861317) 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 23 ways as a sum of consecutive naturals, for example, 1576 + ... + 3194.

It is an arithmetic number, because the mean of its divisors is an integer number (284310).

Almost surely, 2^3861315 is an apocalyptic number.

3861315 is a deficient number, since it is larger than the sum of its proper divisors (2962125).

3861315 is a wasteful number, since it uses less digits than its factorization.

3861315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1683 (or 1680 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 3861315 is about 1965.0229006299. The cubic root of 3861315 is about 156.8839121829.

Adding to 3861315 its reverse (5131683), we get a palindrome (8992998).

The spelling of 3861315 in words is "three million, eight hundred sixty-one thousand, three hundred fifteen".