3894481 has 2 divisors, whose sum is σ = 3894482. Its totient is φ = 3894480.

The previous prime is 3894469. The next prime is 3894511. The reversal of 3894481 is 1844983.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3240000 + 654481 = 1800^2 + 809^2 .

It is a cyclic number.

It is not a de Polignac number, because 3894481 - 2⁷ = 3894353 is a prime.

It is a super-2 number, since 2×3894481² = 30333964518722, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3894481.

It is not a weakly prime, because it can be changed into another prime (3894431) 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 as a sum of consecutive naturals, namely, 1947240 + 1947241.

It is an arithmetic number, because the mean of its divisors is an integer number (1947241).

Almost surely, 2^3894481 is an apocalyptic number.

It is an amenable number.

3894481 is a deficient number, since it is larger than the sum of its proper divisors (1).

3894481 is an equidigital number, since it uses as much as digits as its factorization.

3894481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27648, while the sum is 37.

The square root of 3894481 is about 1973.4439439721. The cubic root of 3894481 is about 157.3318066779.

The spelling of 3894481 in words is "three million, eight hundred ninety-four thousand, four hundred eighty-one".