3852521 has 4 divisors (see below), whose sum is σ = 3860112. Its totient is φ = 3844932.

The previous prime is 3852503. The next prime is 3852539. The reversal of 3852521 is 1252583.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1252583 = 103 ⋅12161.

It is an interprime number because it is at equal distance from previous prime (3852503) and next prime (3852539).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3852521 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3852581) 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, 2975 + ... + 4068.

It is an arithmetic number, because the mean of its divisors is an integer number (965028).

Almost surely, 2^3852521 is an apocalyptic number.

It is an amenable number.

3852521 is a deficient number, since it is larger than the sum of its proper divisors (7591).

3852521 is an equidigital number, since it uses as much as digits as its factorization.

3852521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7590.

The product of its digits is 2400, while the sum is 26.

The square root of 3852521 is about 1962.7839921907. The cubic root of 3852521 is about 156.7647225797.

The spelling of 3852521 in words is "three million, eight hundred fifty-two thousand, five hundred twenty-one".