3882521 has 4 divisors (see below), whose sum is σ = 3987492. Its totient is φ = 3777552.

The previous prime is 3882481. The next prime is 3882523. The reversal of 3882521 is 1252883.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1252883 = 17 ⋅73699.

It can be written as a sum of positive squares in 2 ways, for example, as 2758921 + 1123600 = 1661^2 + 1060^2 .

It is a de Polignac number, because none of the positive numbers 2^k-3882521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3882523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52430 + ... + 52503.

It is an arithmetic number, because the mean of its divisors is an integer number (996873).

Almost surely, 2^3882521 is an apocalyptic number.

It is an amenable number.

3882521 is a deficient number, since it is larger than the sum of its proper divisors (104971).

3882521 is a wasteful number, since it uses less digits than its factorization.

3882521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104970.

The product of its digits is 3840, while the sum is 29.

The square root of 3882521 is about 1970.4113783675. The cubic root of 3882521 is about 157.1705855438.

The spelling of 3882521 in words is "three million, eight hundred eighty-two thousand, five hundred twenty-one".