427771 has 4 divisors (see below), whose sum is σ = 452952. Its totient is φ = 402592.

The previous prime is 427751. The next prime is 427781. The reversal of 427771 is 177724.

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 427771 - 2¹³ = 419579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (427711) 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, 12565 + ... + 12598.

It is an arithmetic number, because the mean of its divisors is an integer number (113238).

2⁴²⁷⁷⁷¹ is an apocalyptic number.

427771 is a deficient number, since it is larger than the sum of its proper divisors (25181).

427771 is a wasteful number, since it uses less digits than its factorization.

427771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25180.

The product of its digits is 2744, while the sum is 28.

The square root of 427771 is about 654.0420475780. The cubic root of 427771 is about 75.3477774446.

Subtracting from 427771 its reverse (177724), we obtain a cube (250047 = 63³).

It can be divided in two parts, 42777 and 1, that added together give a triangular number (42778 = T₂₉₂).

The spelling of 427771 in words is "four hundred twenty-seven thousand, seven hundred seventy-one", and thus it is an iban number.