426671 has 4 divisors (see below), whose sum is σ = 487632. Its totient is φ = 365712.

The previous prime is 426661. The next prime is 426691. The reversal of 426671 is 176624.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-426671 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 426671.

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 426671.

It is not an unprimeable number, because it can be changed into a prime (426611) 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, 30470 + ... + 30483.

It is an arithmetic number, because the mean of its divisors is an integer number (121908).

2⁴²⁶⁶⁷¹ is an apocalyptic number.

426671 is a deficient number, since it is larger than the sum of its proper divisors (60961).

426671 is an equidigital number, since it uses as much as digits as its factorization.

426671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60960.

The product of its digits is 2016, while the sum is 26.

The square root of 426671 is about 653.2005817511. The cubic root of 426671 is about 75.2831371735.

Subtracting from 426671 its reverse (176624), we obtain a cube (250047 = 63³).

The spelling of 426671 in words is "four hundred twenty-six thousand, six hundred seventy-one".