3868513 has 16 divisors (see below), whose sum is σ = 4455360. Its totient is φ = 3326400.

The previous prime is 3868493. The next prime is 3868517. The reversal of 3868513 is 3158683.

It is a happy number.

3868513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3868513 - 2⁵ = 3868481 is a prime.

It is a Duffinian number.

Its product of digits (17280) is a multiple of the sum of its prime divisors (288).

It is not an unprimeable number, because it can be changed into a prime (3868517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21283 + ... + 21463.

It is an arithmetic number, because the mean of its divisors is an integer number (278460).

Almost surely, 2^3868513 is an apocalyptic number.

It is an amenable number.

3868513 is a deficient number, since it is larger than the sum of its proper divisors (586847).

3868513 is a wasteful number, since it uses less digits than its factorization.

3868513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288.

The product of its digits is 17280, while the sum is 34.

The square root of 3868513 is about 1966.8535786886. The cubic root of 3868513 is about 156.9813357666.

The spelling of 3868513 in words is "three million, eight hundred sixty-eight thousand, five hundred thirteen".