198655293 has 16 divisors (see below), whose sum is σ = 267696000. Its totient is φ = 131033280.

The previous prime is 198655273. The next prime is 198655297. The reversal of 198655293 is 392556891.

It is a happy number.

It is not a de Polignac number, because 198655293 - 2¹⁶ = 198589757 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198655297) 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 15 ways as a sum of consecutive naturals, for example, 138303 + ... + 139731.

It is an arithmetic number, because the mean of its divisors is an integer number (16731000).

Almost surely, 2^198655293 is an apocalyptic number.

It is an amenable number.

198655293 is a deficient number, since it is larger than the sum of its proper divisors (69040707).

198655293 is a wasteful number, since it uses less digits than its factorization.

198655293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1892.

The product of its digits is 583200, while the sum is 48.

The square root of 198655293 is about 14094.5128684889. The cubic root of 198655293 is about 583.4899501826.

The spelling of 198655293 in words is "one hundred ninety-eight million, six hundred fifty-five thousand, two hundred ninety-three".