3853281 has 4 divisors (see below), whose sum is σ = 5137712. Its totient is φ = 2568852.

The previous prime is 3853279. The next prime is 3853301. The reversal of 3853281 is 1823583.

It is a happy number.

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: 1823583 = 3 ⋅607861.

It is not a de Polignac number, because 3853281 - 2¹ = 3853279 is a prime.

It is a super-2 number, since 2×3853281² = 29695548929922, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3853211) 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, 642211 + ... + 642216.

It is an arithmetic number, because the mean of its divisors is an integer number (1284428).

Almost surely, 2^3853281 is an apocalyptic number.

It is an amenable number.

3853281 is a deficient number, since it is larger than the sum of its proper divisors (1284431).

3853281 is a wasteful number, since it uses less digits than its factorization.

3853281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1284430.

The product of its digits is 5760, while the sum is 30.

The square root of 3853281 is about 1962.9775852006. The cubic root of 3853281 is about 156.7750304063.

The spelling of 3853281 in words is "three million, eight hundred fifty-three thousand, two hundred eighty-one".