3884561 has 4 divisors (see below), whose sum is σ = 3923124. Its totient is φ = 3846000.

The previous prime is 3884537. The next prime is 3884591. The reversal of 3884561 is 1654883.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2383936 + 1500625 = 1544^2 + 1225^2 .

It is a cyclic number.

It is not a de Polignac number, because 3884561 - 2⁶ = 3884497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3884591) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19130 + ... + 19331.

It is an arithmetic number, because the mean of its divisors is an integer number (980781).

Almost surely, 2^3884561 is an apocalyptic number.

It is an amenable number.

3884561 is a deficient number, since it is larger than the sum of its proper divisors (38563).

3884561 is a wasteful number, since it uses less digits than its factorization.

3884561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38562.

The product of its digits is 23040, while the sum is 35.

The square root of 3884561 is about 1970.9289687860. The cubic root of 3884561 is about 157.1981081985.

The spelling of 3884561 in words is "three million, eight hundred eighty-four thousand, five hundred sixty-one".