3825891 has 12 divisors (see below), whose sum is σ = 5597280. Its totient is φ = 2517840.

The previous prime is 3825869. The next prime is 3825893. The reversal of 3825891 is 1985283.

3825891 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 3825891 - 2⁶ = 3825827 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (3825893) 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 11 ways as a sum of consecutive naturals, for example, 1980 + ... + 3401.

It is an arithmetic number, because the mean of its divisors is an integer number (466440).

Almost surely, 2^3825891 is an apocalyptic number.

3825891 is a deficient number, since it is larger than the sum of its proper divisors (1771389).

3825891 is a wasteful number, since it uses less digits than its factorization.

3825891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5466 (or 5463 counting only the distinct ones).

The product of its digits is 17280, while the sum is 36.

The square root of 3825891 is about 1955.9884968987. The cubic root of 3825891 is about 156.4026825415.

The spelling of 3825891 in words is "three million, eight hundred twenty-five thousand, eight hundred ninety-one".