943281 has 12 divisors (see below), whose sum is σ = 1373008. Its totient is φ = 624024.

The previous prime is 943277. The next prime is 943289. The reversal of 943281 is 182349.

943281 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 943281 - 2² = 943277 is a prime.

It is a super-2 number, since 2×943281² = 1779558089922, which contains 22 as substring.

It is a Duffinian number.

943281 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (943289) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1146 + ... + 1788.

2⁹⁴³²⁸¹ is an apocalyptic number.

It is an amenable number.

943281 is a deficient number, since it is larger than the sum of its proper divisors (429727).

943281 is a wasteful number, since it uses less digits than its factorization.

943281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 812 (or 809 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 943281 is about 971.2265441183. The cubic root of 943281 is about 98.0724509362.

It can be divided in two parts, 94 and 3281, that added together give a cube (3375 = 15³).

The spelling of 943281 in words is "nine hundred forty-three thousand, two hundred eighty-one".