698228655 has 32 divisors (see below), whose sum is σ = 1164699648. Its totient is φ = 356784000.

The previous prime is 698228653. The next prime is 698228683. The reversal of 698228655 is 556822896.

It is not a de Polignac number, because 698228655 - 2¹ = 698228653 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 698228598 and 698228607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (698228653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39532 + ... + 54398.

It is an arithmetic number, because the mean of its divisors is an integer number (36396864).

Almost surely, 2^698228655 is an apocalyptic number.

698228655 is a deficient number, since it is larger than the sum of its proper divisors (466470993).

698228655 is a wasteful number, since it uses less digits than its factorization.

698228655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15007.

The product of its digits is 2073600, while the sum is 51.

The square root of 698228655 is about 26424.0166326015. The cubic root of 698228655 is about 887.1544242083.

The spelling of 698228655 in words is "six hundred ninety-eight million, two hundred twenty-eight thousand, six hundred fifty-five".