3825869 has 2 divisors, whose sum is σ = 3825870. Its totient is φ = 3825868.

The previous prime is 3825853. The next prime is 3825893. The reversal of 3825869 is 9685283.

3825869 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., 3822025 + 3844 = 1955^2 + 62^2 .

It is a cyclic number.

It is not a de Polignac number, because 3825869 - 2⁴ = 3825853 is a prime.

It is a super-2 number, since 2×3825869² = 29274547210322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a d-powerful number, because it can be written as 3¹³ + 8³ + 2⁸ + 5⁶ + 8⁴ + 6⁸ + 9⁶ .

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3822869) 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, 1912934 + 1912935.

It is an arithmetic number, because the mean of its divisors is an integer number (1912935).

Almost surely, 2^3825869 is an apocalyptic number.

It is an amenable number.

3825869 is a deficient number, since it is larger than the sum of its proper divisors (1).

3825869 is an equidigital number, since it uses as much as digits as its factorization.

3825869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 103680, while the sum is 41.

The square root of 3825869 is about 1955.9828731357. The cubic root of 3825869 is about 156.4023827538.

The spelling of 3825869 in words is "three million, eight hundred twenty-five thousand, eight hundred sixty-nine".