427744 has 12 divisors (see below), whose sum is σ = 842184. Its totient is φ = 213856.

The previous prime is 427733. The next prime is 427751. The reversal of 427744 is 447724.

427744 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6652 + ... + 6715.

It is an arithmetic number, because the mean of its divisors is an integer number (70182).

2⁴²⁷⁷⁴⁴ is an apocalyptic number.

It is an amenable number.

427744 is a deficient number, since it is larger than the sum of its proper divisors (414440).

427744 is a wasteful number, since it uses less digits than its factorization.

427744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13377 (or 13369 counting only the distinct ones).

The product of its digits is 6272, while the sum is 28.

The square root of 427744 is about 654.0214063775. The cubic root of 427744 is about 75.3461921472.

Subtracting from 427744 its sum of digits (28), we obtain a square (427716 = 654²).

It can be divided in two parts, 42774 and 4, that added together give a triangular number (42778 = T₂₉₂).

The spelling of 427744 in words is "four hundred twenty-seven thousand, seven hundred forty-four", and thus it is an iban number.