3868619 has 2 divisors, whose sum is σ = 3868620. Its totient is φ = 3868618.

The previous prime is 3868591. The next prime is 3868649. The reversal of 3868619 is 9168683.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3868619 - 2²⁰ = 2820043 is a prime.

It is a super-2 number, since 2×3868619² = 29932425934322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a d-powerful number, because it can be written as 3³ + 8⁵ + 6 + 8⁷ + 6⁸ + 1 + 9⁵ .

It is not a weakly prime, because it can be changed into another prime (3868649) 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 as a sum of consecutive naturals, namely, 1934309 + 1934310.

It is an arithmetic number, because the mean of its divisors is an integer number (1934310).

Almost surely, 2^3868619 is an apocalyptic number.

3868619 is a deficient number, since it is larger than the sum of its proper divisors (1).

3868619 is an equidigital number, since it uses as much as digits as its factorization.

3868619 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 62208, while the sum is 41.

The square root of 3868619 is about 1966.8805250955. The cubic root of 3868619 is about 156.9827695535.

The spelling of 3868619 in words is "three million, eight hundred sixty-eight thousand, six hundred nineteen".