1404709 has 2 divisors, whose sum is σ = 1404710. Its totient is φ = 1404708.

The previous prime is 1404671. The next prime is 1404721. The reversal of 1404709 is 9074041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1404225 + 484 = 1185^2 + 22^2 .

It is a cyclic number.

It is not a de Polignac number, because 1404709 - 2⁷ = 1404581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1404749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 702354 + 702355.

It is an arithmetic number, because the mean of its divisors is an integer number (702355).

2^1404709 is an apocalyptic number.

It is an amenable number.

1404709 is a deficient number, since it is larger than the sum of its proper divisors (1).

1404709 is an equidigital number, since it uses as much as digits as its factorization.

1404709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 1404709 is about 1185.2042018150. The cubic root of 1404709 is about 111.9941801823.

The spelling of 1404709 in words is "one million, four hundred four thousand, seven hundred nine".