985198445 has 128 divisors (see below), whose sum is σ = 1647378432. Its totient is φ = 547430400.

The previous prime is 985198427. The next prime is 985198447. The reversal of 985198445 is 544891589.

It is not a de Polignac number, because 985198445 - 2⁶ = 985198381 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (985198447) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 10156637 + ... + 10156733.

It is an arithmetic number, because the mean of its divisors is an integer number (12870144).

Almost surely, 2^985198445 is an apocalyptic number.

It is an amenable number.

985198445 is a deficient number, since it is larger than the sum of its proper divisors (662179987).

985198445 is a wasteful number, since it uses less digits than its factorization.

985198445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211.

The product of its digits is 2073600, while the sum is 53.

The square root of 985198445 is about 31387.8709854619. The cubic root of 985198445 is about 995.0416032704.

The spelling of 985198445 in words is "nine hundred eighty-five million, one hundred ninety-eight thousand, four hundred forty-five".