3825645 has 8 divisors (see below), whose sum is σ = 6121056. Its totient is φ = 2040336.

The previous prime is 3825643. The next prime is 3825649. The reversal of 3825645 is 5465283.

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

It is not a de Polignac number, because 3825645 - 2¹ = 3825643 is a prime.

It is a super-3 number, since 3×3825645³ (a number of 21 digits) contains 333 as substring.

It is a d-powerful number, because it can be written as 3¹¹ + 8² + 2⁶ + 5⁶ + 6⁸ + 4 + 5⁹ .

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 polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127507 + ... + 127536.

It is an arithmetic number, because the mean of its divisors is an integer number (765132).

Almost surely, 2^3825645 is an apocalyptic number.

It is an amenable number.

3825645 is a deficient number, since it is larger than the sum of its proper divisors (2295411).

3825645 is a wasteful number, since it uses less digits than its factorization.

3825645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255051.

The product of its digits is 28800, while the sum is 33.

The square root of 3825645 is about 1955.9256120824. The cubic root of 3825645 is about 156.3993303041.

The spelling of 3825645 in words is "three million, eight hundred twenty-five thousand, six hundred forty-five".