679741 has 2 divisors, whose sum is σ = 679742. Its totient is φ = 679740.

The previous prime is 679733. The next prime is 679747. The reversal of 679741 is 147976.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 606841 + 72900 = 779^2 + 270^2 .

It is a cyclic number.

It is not a de Polignac number, because 679741 - 2³ = 679733 is a prime.

It is a nialpdrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 679697 and 679706.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (679747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 339870 + 339871.

It is an arithmetic number, because the mean of its divisors is an integer number (339871).

2⁶⁷⁹⁷⁴¹ is an apocalyptic number.

It is an amenable number.

679741 is a deficient number, since it is larger than the sum of its proper divisors (1).

679741 is an equidigital number, since it uses as much as digits as its factorization.

679741 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10584, while the sum is 34.

The square root of 679741 is about 824.4640683499. The cubic root of 679741 is about 87.9254275265.

The spelling of 679741 in words is "six hundred seventy-nine thousand, seven hundred forty-one".