3803281 has 4 divisors (see below), whose sum is σ = 3807232. Its totient is φ = 3799332.

The previous prime is 3803251. The next prime is 3803311. The reversal of 3803281 is 1823083.

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 a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (3803251) and next prime (3803311).

It is a cyclic number.

It is not a de Polignac number, because 3803281 - 2⁷ = 3803153 is a prime.

It is a super-2 number, since 2×3803281² = 28929892729922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3803231) 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, 520 + ... + 2806.

It is an arithmetic number, because the mean of its divisors is an integer number (951808).

Almost surely, 2^3803281 is an apocalyptic number.

It is an amenable number.

3803281 is a deficient number, since it is larger than the sum of its proper divisors (3951).

3803281 is a wasteful number, since it uses less digits than its factorization.

3803281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3950.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 3803281 is about 1950.2002461286. The cubic root of 3803281 is about 156.0939741699.

The spelling of 3803281 in words is "three million, eight hundred three thousand, two hundred eighty-one".