1413809 has 4 divisors (see below), whose sum is σ = 1488240. Its totient is φ = 1339380.

The previous prime is 1413793. The next prime is 1413827. The reversal of 1413809 is 9083141.

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 1413809 - 2⁴ = 1413793 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1413829) 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, 37187 + ... + 37224.

It is an arithmetic number, because the mean of its divisors is an integer number (372060).

2^1413809 is an apocalyptic number.

1413809 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1413809 is a deficient number, since it is larger than the sum of its proper divisors (74431).

1413809 is an equidigital number, since it uses as much as digits as its factorization.

1413809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74430.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 1413809 is about 1189.0370053114. The cubic root of 1413809 is about 112.2355004312.

It can be divided in two parts, 1413 and 809, that added together give a palindrome (2222).

The spelling of 1413809 in words is "one million, four hundred thirteen thousand, eight hundred nine".