3895813 has 2 divisors, whose sum is σ = 3895814. Its totient is φ = 3895812.

The previous prime is 3895799. The next prime is 3895847. The reversal of 3895813 is 3185983.

3895813 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2566404 + 1329409 = 1602^2 + 1153^2 .

It is a cyclic number.

It is not a de Polignac number, because 3895813 - 2⁵ = 3895781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3895883) 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 as a sum of consecutive naturals, namely, 1947906 + 1947907.

It is an arithmetic number, because the mean of its divisors is an integer number (1947907).

Almost surely, 2^3895813 is an apocalyptic number.

It is an amenable number.

3895813 is a deficient number, since it is larger than the sum of its proper divisors (1).

3895813 is an equidigital number, since it uses as much as digits as its factorization.

3895813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25920, while the sum is 37.

The square root of 3895813 is about 1973.7813962037. The cubic root of 3895813 is about 157.3497416375.

Subtracting from 3895813 its product of digits (25920), we obtain a cube (3869893 = 157³).

The spelling of 3895813 in words is "three million, eight hundred ninety-five thousand, eight hundred thirteen".