197928422 has 8 divisors (see below), whose sum is σ = 307130400. Its totient is φ = 95551624.

The previous prime is 197928389. The next prime is 197928431. The reversal of 197928422 is 224829791.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1706222 + ... + 1706337.

It is an arithmetic number, because the mean of its divisors is an integer number (38391300).

Almost surely, 2^197928422 is an apocalyptic number.

197928422 is a deficient number, since it is larger than the sum of its proper divisors (109201978).

197928422 is a wasteful number, since it uses less digits than its factorization.

197928422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3412590.

The product of its digits is 145152, while the sum is 44.

The square root of 197928422 is about 14068.7036360853. The cubic root of 197928422 is about 582.7774257349. Note that the first 3 decimals are identical.

The spelling of 197928422 in words is "one hundred ninety-seven million, nine hundred twenty-eight thousand, four hundred twenty-two".