698849 has 2 divisors, whose sum is σ = 698850. Its totient is φ = 698848.

The previous prime is 698827. The next prime is 698891. The reversal of 698849 is 948896.

698849 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 490000 + 208849 = 700^2 + 457^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-698849 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (698899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 349424 + 349425.

It is an arithmetic number, because the mean of its divisors is an integer number (349425).

2⁶⁹⁸⁸⁴⁹ is an apocalyptic number.

It is an amenable number.

698849 is a deficient number, since it is larger than the sum of its proper divisors (1).

698849 is an equidigital number, since it uses as much as digits as its factorization.

698849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 124416, while the sum is 44.

The square root of 698849 is about 835.9718894795. The cubic root of 698849 is about 88.7417078810.

Subtracting 698849 from its reverse (948896), we obtain a cube (250047 = 63³).

The spelling of 698849 in words is "six hundred ninety-eight thousand, eight hundred forty-nine".