3895521 has 16 divisors (see below), whose sum is σ = 6035328. Its totient is φ = 2188800.

The previous prime is 3895511. The next prime is 3895531. The reversal of 3895521 is 1255983.

It is an interprime number because it is at equal distance from previous prime (3895511) and next prime (3895531).

It is not a de Polignac number, because 3895521 - 2¹⁹ = 3371233 is a prime.

It is a super-2 number, since 2×3895521² = 30350167722882, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3895511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 240 + ... + 2801.

It is an arithmetic number, because the mean of its divisors is an integer number (377208).

Almost surely, 2^3895521 is an apocalyptic number.

It is an amenable number.

3895521 is a deficient number, since it is larger than the sum of its proper divisors (2139807).

3895521 is a wasteful number, since it uses less digits than its factorization.

3895521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3112.

The product of its digits is 10800, while the sum is 33.

The square root of 3895521 is about 1973.7074251266. The cubic root of 3895521 is about 157.3458102996.

It can be divided in two parts, 38 and 95521, that added together give a palindrome (95559).

The spelling of 3895521 in words is "three million, eight hundred ninety-five thousand, five hundred twenty-one".