698228 has 12 divisors (see below), whose sum is σ = 1230180. Its totient is φ = 346752.

The previous prime is 698183. The next prime is 698239. The reversal of 698228 is 822896.

It can be written as a sum of positive squares in 2 ways, for example, as 446224 + 252004 = 668^2 + 502^2 .

It is a nialpdrome in base 16.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 698228.

It is an unprimeable number.

698228 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 in 3 ways as a sum of consecutive naturals, for example, 188 + ... + 1196.

It is an arithmetic number, because the mean of its divisors is an integer number (102515).

2⁶⁹⁸²²⁸ is an apocalyptic number.

It is an amenable number.

698228 is a deficient number, since it is larger than the sum of its proper divisors (531952).

698228 is a wasteful number, since it uses less digits than its factorization.

698228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1186 (or 1184 counting only the distinct ones).

The product of its digits is 13824, while the sum is 35.

The square root of 698228 is about 835.6003829583. The cubic root of 698228 is about 88.7154146799.

The spelling of 698228 in words is "six hundred ninety-eight thousand, two hundred twenty-eight".