1344689 has 4 divisors (see below), whose sum is σ = 1347060. Its totient is φ = 1342320.

The previous prime is 1344671. The next prime is 1344709. The reversal of 1344689 is 9864431.

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 409600 + 935089 = 640^2 + 967^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1344689 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (1344389) 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, 227 + ... + 1655.

It is an arithmetic number, because the mean of its divisors is an integer number (336765).

2^1344689 is an apocalyptic number.

It is an amenable number.

1344689 is a deficient number, since it is larger than the sum of its proper divisors (2371).

1344689 is an equidigital number, since it uses as much as digits as its factorization.

1344689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2370.

The product of its digits is 20736, while the sum is 35.

The square root of 1344689 is about 1159.6072611018. The cubic root of 1344689 is about 110.3758219562.

The spelling of 1344689 in words is "one million, three hundred forty-four thousand, six hundred eighty-nine".