427877 has 2 divisors, whose sum is σ = 427878. Its totient is φ = 427876.

The previous prime is 427859. The next prime is 427879. The reversal of 427877 is 778724.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 401956 + 25921 = 634^2 + 161^2 .

It is a cyclic number.

It is not a de Polignac number, because 427877 - 2⁶ = 427813 is a prime.

Together with 427879, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 427877.

It is not a weakly prime, because it can be changed into another prime (427879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213938 + 213939.

It is an arithmetic number, because the mean of its divisors is an integer number (213939).

2⁴²⁷⁸⁷⁷ is an apocalyptic number.

It is an amenable number.

427877 is a deficient number, since it is larger than the sum of its proper divisors (1).

427877 is an equidigital number, since it uses as much as digits as its factorization.

427877 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21952, while the sum is 35.

The square root of 427877 is about 654.1230771040. The cubic root of 427877 is about 75.3540005599.

The spelling of 427877 in words is "four hundred twenty-seven thousand, eight hundred seventy-seven".