198530073 has 24 divisors (see below), whose sum is σ = 328144128. Its totient is φ = 113303232.

The previous prime is 198530071. The next prime is 198530117. The reversal of 198530073 is 370035891.

198530073 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 198530073 - 2¹ = 198530071 is a prime.

It is not an unprimeable number, because it can be changed into a prime (198530071) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 68061 + ... + 70917.

It is an arithmetic number, because the mean of its divisors is an integer number (13672672).

Almost surely, 2^198530073 is an apocalyptic number.

It is an amenable number.

198530073 is a deficient number, since it is larger than the sum of its proper divisors (129614055).

198530073 is a wasteful number, since it uses less digits than its factorization.

198530073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3973 (or 3970 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 198530073 is about 14090.0700140205. The cubic root of 198530073 is about 583.3673257652.

The spelling of 198530073 in words is "one hundred ninety-eight million, five hundred thirty thousand, seventy-three".