556709 has 2 divisors, whose sum is σ = 556710. Its totient is φ = 556708.

The previous prime is 556697. The next prime is 556723. The reversal of 556709 is 907655.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 494209 + 62500 = 703^2 + 250^2 .

It is a cyclic number.

It is not a de Polignac number, because 556709 - 2⁴ = 556693 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (556769) 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, 278354 + 278355.

It is an arithmetic number, because the mean of its divisors is an integer number (278355).

2⁵⁵⁶⁷⁰⁹ is an apocalyptic number.

It is an amenable number.

556709 is a deficient number, since it is larger than the sum of its proper divisors (1).

556709 is an equidigital number, since it uses as much as digits as its factorization.

556709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9450, while the sum is 32.

The square root of 556709 is about 746.1293453551. The cubic root of 556709 is about 82.2639225884.

The spelling of 556709 in words is "five hundred fifty-six thousand, seven hundred nine".