427943 has 4 divisors (see below), whose sum is σ = 433440. Its totient is φ = 422448.

The previous prime is 427939. The next prime is 427949. The reversal of 427943 is 349724.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 427943 - 2² = 427939 is a prime.

It is a super-2 number, since 2×427943² = 366270422498, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427949) 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, 2630 + ... + 2787.

It is an arithmetic number, because the mean of its divisors is an integer number (108360).

2⁴²⁷⁹⁴³ is an apocalyptic number.

427943 is a deficient number, since it is larger than the sum of its proper divisors (5497).

427943 is an equidigital number, since it uses as much as digits as its factorization.

427943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5496.

The product of its digits is 6048, while the sum is 29.

The square root of 427943 is about 654.1735243802. The cubic root of 427943 is about 75.3578748107.

The spelling of 427943 in words is "four hundred twenty-seven thousand, nine hundred forty-three".