3825647 has 8 divisors (see below), whose sum is σ = 4390176. Its totient is φ = 3265632.

The previous prime is 3825643. The next prime is 3825649. The reversal of 3825647 is 7465283.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3825647 - 2² = 3825643 is a prime.

It is a d-powerful number, because it can be written as 3¹³ + 8 + 2²¹ + 5³ + 6 + 4⁷ + 7⁶ .

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3825643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 953 + ... + 2925.

It is an arithmetic number, because the mean of its divisors is an integer number (548772).

Almost surely, 2^3825647 is an apocalyptic number.

3825647 is a deficient number, since it is larger than the sum of its proper divisors (564529).

3825647 is a wasteful number, since it uses less digits than its factorization.

3825647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2257.

The product of its digits is 40320, while the sum is 35.

The square root of 3825647 is about 1955.9261233492. The cubic root of 3825647 is about 156.3993575587.

The spelling of 3825647 in words is "three million, eight hundred twenty-five thousand, six hundred forty-seven".