3333281 has 4 divisors (see below), whose sum is σ = 3809472. Its totient is φ = 2857092.

The previous prime is 3333277. The next prime is 3333283. The reversal of 3333281 is 1823333.

3333281 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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: 1823333 = 137 ⋅13309.

It is not a de Polignac number, because 3333281 - 2² = 3333277 is a prime.

It is a super-2 number, since 2×3333281² = 22221524449922, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3333283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 238085 + ... + 238098.

It is an arithmetic number, because the mean of its divisors is an integer number (952368).

Almost surely, 2^3333281 is an apocalyptic number.

It is an amenable number.

3333281 is a deficient number, since it is larger than the sum of its proper divisors (476191).

3333281 is an equidigital number, since it uses as much as digits as its factorization.

3333281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476190.

The product of its digits is 1296, while the sum is 23.

The square root of 3333281 is about 1825.7275262207. The cubic root of 3333281 is about 149.3793764583.

The spelling of 3333281 in words is "three million, three hundred thirty-three thousand, two hundred eighty-one".