698249 has 2 divisors, whose sum is σ = 698250. Its totient is φ = 698248.

The previous prime is 698239. The next prime is 698251. The reversal of 698249 is 942896.

698249 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 697225 + 1024 = 835^2 + 32^2 .

It is a cyclic number.

It is not a de Polignac number, because 698249 - 2⁸ = 697993 is a prime.

Together with 698251, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (698239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 349124 + 349125.

It is an arithmetic number, because the mean of its divisors is an integer number (349125).

2⁶⁹⁸²⁴⁹ is an apocalyptic number.

It is an amenable number.

698249 is a deficient number, since it is larger than the sum of its proper divisors (1).

698249 is an equidigital number, since it uses as much as digits as its factorization.

698249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104, while the sum is 38.

The square root of 698249 is about 835.6129486790. The cubic root of 698249 is about 88.7163040766.

The spelling of 698249 in words is "six hundred ninety-eight thousand, two hundred forty-nine".