427844 has 6 divisors (see below), whose sum is σ = 748734. Its totient is φ = 213920.

The previous prime is 427813. The next prime is 427849. The reversal of 427844 is 448724.

It can be written as a sum of positive squares in only one way, i.e., 313600 + 114244 = 560^2 + 338^2 .

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 427844.

It is not an unprimeable number, because it can be changed into a prime (427849) by changing a digit.

427844 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53477 + ... + 53484.

It is an arithmetic number, because the mean of its divisors is an integer number (124789).

2⁴²⁷⁸⁴⁴ is an apocalyptic number.

It is an amenable number.

427844 is a deficient number, since it is larger than the sum of its proper divisors (320890).

427844 is a wasteful number, since it uses less digits than its factorization.

427844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106965 (or 106963 counting only the distinct ones).

The product of its digits is 7168, while the sum is 29.

The square root of 427844 is about 654.0978520069. The cubic root of 427844 is about 75.3520632852.

The spelling of 427844 in words is "four hundred twenty-seven thousand, eight hundred forty-four".