197850828 has 72 divisors (see below), whose sum is σ = 568642032. Its totient is φ = 53200896.

The previous prime is 197850817. The next prime is 197850881. The reversal of 197850828 is 828058791.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 100 + ... + 19892.

It is an arithmetic number, because the mean of its divisors is an integer number (7897806).

Almost surely, 2^197850828 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 197850828, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (284321016).

197850828 is an abundant number, since it is smaller than the sum of its proper divisors (370791204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

197850828 is a wasteful number, since it uses less digits than its factorization.

197850828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19831 (or 19822 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 48.

The square root of 197850828 is about 14065.9456845247. The cubic root of 197850828 is about 582.7012602510.

The spelling of 197850828 in words is "one hundred ninety-seven million, eight hundred fifty thousand, eight hundred twenty-eight".