427109 has 4 divisors (see below), whose sum is σ = 429516. Its totient is φ = 424704.

The previous prime is 427103. The next prime is 427117. The reversal of 427109 is 901724.

427109 is nontrivially palindromic in base 14.

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 302500 + 124609 = 550^2 + 353^2 .

It is a cyclic number.

It is not a de Polignac number, because 427109 - 2¹² = 423013 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 (427103) 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, 914 + ... + 1299.

It is an arithmetic number, because the mean of its divisors is an integer number (107379).

2⁴²⁷¹⁰⁹ is an apocalyptic number.

It is an amenable number.

427109 is a deficient number, since it is larger than the sum of its proper divisors (2407).

427109 is a wasteful number, since it uses less digits than its factorization.

427109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2406.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 427109 is about 653.5357679577. The cubic root of 427109 is about 75.3088890505.

The spelling of 427109 in words is "four hundred twenty-seven thousand, one hundred nine".