3868015 has 4 divisors (see below), whose sum is σ = 4641624. Its totient is φ = 3094408.

The previous prime is 3868013. The next prime is 3868019. The reversal of 3868015 is 5108683.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5108683 = 67 ⋅76249.

It is a cyclic number.

It is not a de Polignac number, because 3868015 - 2¹ = 3868013 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3868013) 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 3 ways as a sum of consecutive naturals, for example, 386797 + ... + 386806.

It is an arithmetic number, because the mean of its divisors is an integer number (1160406).

Almost surely, 2^3868015 is an apocalyptic number.

3868015 is a deficient number, since it is larger than the sum of its proper divisors (773609).

3868015 is an equidigital number, since it uses as much as digits as its factorization.

3868015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 773608.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 3868015 is about 1966.7269764764. The cubic root of 3868015 is about 156.9745993229.

The spelling of 3868015 in words is "three million, eight hundred sixty-eight thousand, fifteen".