197698842 has 72 divisors (see below), whose sum is σ = 483312960. Its totient is φ = 57920400.

The previous prime is 197698841. The next prime is 197698847. The reversal of 197698842 is 248896791.

It is not an unprimeable number, because it can be changed into a prime (197698841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 189759 + ... + 190797.

It is an arithmetic number, because the mean of its divisors is an integer number (6712680).

Almost surely, 2^197698842 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 197698842, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (241656480).

197698842 is an abundant number, since it is smaller than the sum of its proper divisors (285614118).

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

197698842 is a wasteful number, since it uses less digits than its factorization.

197698842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1120 (or 1086 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 54.

The square root of 197698842 is about 14060.5420236917. The cubic root of 197698842 is about 582.5520146102.

The spelling of 197698842 in words is "one hundred ninety-seven million, six hundred ninety-eight thousand, eight hundred forty-two".