698080849 has 2 divisors, whose sum is σ = 698080850. Its totient is φ = 698080848.

The previous prime is 698080829. The next prime is 698080871. The reversal of 698080849 is 948080896.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 624000400 + 74080449 = 24980^2 + 8607^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-698080849 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 698080796 and 698080805.

It is not a weakly prime, because it can be changed into another prime (698080819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 349040424 + 349040425.

It is an arithmetic number, because the mean of its divisors is an integer number (349040425).

Almost surely, 2^698080849 is an apocalyptic number.

It is an amenable number.

698080849 is a deficient number, since it is larger than the sum of its proper divisors (1).

698080849 is an equidigital number, since it uses as much as digits as its factorization.

698080849 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 995328, while the sum is 52.

The square root of 698080849 is about 26421.2196728312. The cubic root of 698080849 is about 887.0918200745.

The spelling of 698080849 in words is "six hundred ninety-eight million, eighty thousand, eight hundred forty-nine".