943491 has 4 divisors (see below), whose sum is σ = 1257992. Its totient is φ = 628992.

The previous prime is 943477. The next prime is 943499. The reversal of 943491 is 194349.

943491 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: 194349 = 3 ⋅64783.

It is not a de Polignac number, because 943491 - 2⁷ = 943363 is a prime.

It is a D-number.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 943491.

It is not an unprimeable number, because it can be changed into a prime (943499) 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, 157246 + ... + 157251.

It is an arithmetic number, because the mean of its divisors is an integer number (314498).

2⁹⁴³⁴⁹¹ is an apocalyptic number.

943491 is a deficient number, since it is larger than the sum of its proper divisors (314501).

943491 is a wasteful number, since it uses less digits than its factorization.

943491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314500.

The product of its digits is 3888, while the sum is 30.

The square root of 943491 is about 971.3346488209. The cubic root of 943491 is about 98.0797282609.

The spelling of 943491 in words is "nine hundred forty-three thousand, four hundred ninety-one".