427589 has 4 divisors (see below), whose sum is σ = 438060. Its totient is φ = 417120.

The previous prime is 427579. The next prime is 427591. The reversal of 427589 is 985724.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 240100 + 187489 = 490^2 + 433^2 .

It is a cyclic number.

It is not a de Polignac number, because 427589 - 2⁸ = 427333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427529) 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, 5174 + ... + 5255.

It is an arithmetic number, because the mean of its divisors is an integer number (109515).

2⁴²⁷⁵⁸⁹ is an apocalyptic number.

It is an amenable number.

427589 is a deficient number, since it is larger than the sum of its proper divisors (10471).

427589 is a wasteful number, since it uses less digits than its factorization.

427589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10470.

The product of its digits is 20160, while the sum is 35.

The square root of 427589 is about 653.9028979902. The cubic root of 427589 is about 75.3370900747.

The spelling of 427589 in words is "four hundred twenty-seven thousand, five hundred eighty-nine".