197609842 has 16 divisors (see below), whose sum is σ = 312861600. Its totient is φ = 93350880.

The previous prime is 197609837. The next prime is 197609849. The reversal of 197609842 is 248906791.

It is a junction number, because it is equal to n+sod(n) for n = 197609792 and 197609801.

It is not an unprimeable number, because it can be changed into a prime (197609849) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7542 + ... + 21262.

It is an arithmetic number, because the mean of its divisors is an integer number (19553850).

Almost surely, 2^197609842 is an apocalyptic number.

197609842 is a deficient number, since it is larger than the sum of its proper divisors (115251758).

197609842 is a wasteful number, since it uses less digits than its factorization.

197609842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14121.

The product of its (nonzero) digits is 217728, while the sum is 46.

The square root of 197609842 is about 14057.3767823161. The cubic root of 197609842 is about 582.4645837972.

The spelling of 197609842 in words is "one hundred ninety-seven million, six hundred nine thousand, eight hundred forty-two".