198858853 has 2 divisors, whose sum is σ = 198858854. Its totient is φ = 198858852.

The previous prime is 198858817. The next prime is 198858889. The reversal of 198858853 is 358858891.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (198858817) and next prime (198858889).

It can be written as a sum of positive squares in only one way, i.e., 167521249 + 31337604 = 12943^2 + 5598^2 .

It is an emirp because it is prime and its reverse (358858891) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 198858853 - 2²⁵ = 165304421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 198858794 and 198858803.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (198858553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99429426 + 99429427.

It is an arithmetic number, because the mean of its divisors is an integer number (99429427).

Almost surely, 2^198858853 is an apocalyptic number.

It is an amenable number.

198858853 is a deficient number, since it is larger than the sum of its proper divisors (1).

198858853 is an equidigital number, since it uses as much as digits as its factorization.

198858853 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2764800, while the sum is 55.

The square root of 198858853 is about 14101.7322694767. The cubic root of 198858853 is about 583.6891808304.

The spelling of 198858853 in words is "one hundred ninety-eight million, eight hundred fifty-eight thousand, eight hundred fifty-three".