214404709 has 2 divisors, whose sum is σ = 214404710. Its totient is φ = 214404708.

The previous prime is 214404679. The next prime is 214404727. The reversal of 214404709 is 907404412.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 204776100 + 9628609 = 14310^2 + 3103^2 .

It is a cyclic number.

It is not a de Polignac number, because 214404709 - 2²³ = 206016101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (214404739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107202354 + 107202355.

It is an arithmetic number, because the mean of its divisors is an integer number (107202355).

Almost surely, 2^214404709 is an apocalyptic number.

It is an amenable number.

214404709 is a deficient number, since it is larger than the sum of its proper divisors (1).

214404709 is an equidigital number, since it uses as much as digits as its factorization.

214404709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 214404709 is about 14642.5649733918. The cubic root of 214404709 is about 598.5192272301.

The spelling of 214404709 in words is "two hundred fourteen million, four hundred four thousand, seven hundred nine".