814409 has 4 divisors (see below), whose sum is σ = 817104. Its totient is φ = 811716.

The previous prime is 814403. The next prime is 814423. The reversal of 814409 is 904418.

814409 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 814409 - 2⁴ = 814393 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (814403) 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, 827 + ... + 1520.

It is an arithmetic number, because the mean of its divisors is an integer number (204276).

2⁸¹⁴⁴⁰⁹ is an apocalyptic number.

It is an amenable number.

814409 is a deficient number, since it is larger than the sum of its proper divisors (2695).

814409 is a wasteful number, since it uses less digits than its factorization.

814409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2694.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 814409 is about 902.4461202753. The cubic root of 814409 is about 93.3858024141.

Subtracting 814409 from its reverse (904418), we obtain a palindrome (90009).

The spelling of 814409 in words is "eight hundred fourteen thousand, four hundred nine".