1404437 has 2 divisors, whose sum is σ = 1404438. Its totient is φ = 1404436.

The previous prime is 1404427. The next prime is 1404439. The reversal of 1404437 is 7344041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 749956 + 654481 = 866^2 + 809^2 .

It is an emirp because it is prime and its reverse (7344041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1404437 - 2⁸ = 1404181 is a prime.

Together with 1404439, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1404439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 702218 + 702219.

It is an arithmetic number, because the mean of its divisors is an integer number (702219).

2^1404437 is an apocalyptic number.

It is an amenable number.

1404437 is a deficient number, since it is larger than the sum of its proper divisors (1).

1404437 is an equidigital number, since it uses as much as digits as its factorization.

1404437 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 1404437 is about 1185.0894481009. The cubic root of 1404437 is about 111.9869510733.

Adding to 1404437 its reverse (7344041), we get a palindrome (8748478).

The spelling of 1404437 in words is "one million, four hundred four thousand, four hundred thirty-seven".