3894281 has 4 divisors (see below), whose sum is σ = 3967812. Its totient is φ = 3820752.

The previous prime is 3894269. The next prime is 3894307. The reversal of 3894281 is 1824983.

It is a happy number.

3894281 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 an emirpimes, since its reverse is a distinct semiprime: 1824983 = 587 ⋅3109.

It can be written as a sum of positive squares in 2 ways, for example, as 3553225 + 341056 = 1885^2 + 584^2 .

It is a cyclic number.

It is not a de Polignac number, because 3894281 - 2⁶ = 3894217 is a prime.

It is a super-2 number, since 2×3894281² = 30330849013922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3894211) 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, 36686 + ... + 36791.

It is an arithmetic number, because the mean of its divisors is an integer number (991953).

Almost surely, 2^3894281 is an apocalyptic number.

It is an amenable number.

3894281 is a deficient number, since it is larger than the sum of its proper divisors (73531).

3894281 is an equidigital number, since it uses as much as digits as its factorization.

3894281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73530.

The product of its digits is 13824, while the sum is 35.

The square root of 3894281 is about 1973.3932704861. The cubic root of 3894281 is about 157.3291133879.

The spelling of 3894281 in words is "three million, eight hundred ninety-four thousand, two hundred eighty-one".