195079897 has 8 divisors (see below), whose sum is σ = 212428800. Its totient is φ = 178439184.

The previous prime is 195079883. The next prime is 195079903. The reversal of 195079897 is 798970591.

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

It is not a de Polignac number, because 195079897 - 2¹¹ = 195077849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (195079877) 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, 176473 + ... + 177574.

It is an arithmetic number, because the mean of its divisors is an integer number (26553600).

Almost surely, 2^195079897 is an apocalyptic number.

It is an amenable number.

195079897 is a deficient number, since it is larger than the sum of its proper divisors (17348903).

195079897 is a wasteful number, since it uses less digits than its factorization.

195079897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354095.

The product of its (nonzero) digits is 1428840, while the sum is 55.

The square root of 195079897 is about 13967.1005222988. The cubic root of 195079897 is about 579.9681879104.

The spelling of 195079897 in words is "one hundred ninety-five million, seventy-nine thousand, eight hundred ninety-seven".