3845641 has 4 divisors (see below), whose sum is σ = 3894400. Its totient is φ = 3796884.

The previous prime is 3845593. The next prime is 3845651. The reversal of 3845641 is 1465483.

It is a happy number.

3845641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3845641 - 2²¹ = 1748489 is a prime.

It is a d-powerful number, because it can be written as 3⁷ + 8⁷ + 4⁵ + 5³ + 6⁸ + 4⁸ + 1 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3845651) 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 3 ways as a sum of consecutive naturals, for example, 24261 + ... + 24418.

It is an arithmetic number, because the mean of its divisors is an integer number (973600).

Almost surely, 2^3845641 is an apocalyptic number.

It is an amenable number.

3845641 is a deficient number, since it is larger than the sum of its proper divisors (48759).

3845641 is an equidigital number, since it uses as much as digits as its factorization.

3845641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48758.

The product of its digits is 11520, while the sum is 31.

The square root of 3845641 is about 1961.0305963957. The cubic root of 3845641 is about 156.6713478808.

The spelling of 3845641 in words is "three million, eight hundred forty-five thousand, six hundred forty-one".