195903697 has 8 divisors (see below), whose sum is σ = 216724032. Its totient is φ = 175585200.

The previous prime is 195903679. The next prime is 195903713. The reversal of 195903697 is 796309591.

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

It is a cyclic number.

It is not a de Polignac number, because 195903697 - 2⁷ = 195903569 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 195903697.

It is not an unprimeable number, because it can be changed into a prime (195903797) 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 7 ways as a sum of consecutive naturals, for example, 124638 + ... + 126199.

It is an arithmetic number, because the mean of its divisors is an integer number (27090504).

Almost surely, 2^195903697 is an apocalyptic number.

It is an amenable number.

195903697 is a deficient number, since it is larger than the sum of its proper divisors (20820335).

195903697 is a wasteful number, since it uses less digits than its factorization.

195903697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250919.

The product of its (nonzero) digits is 459270, while the sum is 49.

The square root of 195903697 is about 13996.5601845596. The cubic root of 195903697 is about 580.7834211222.

The spelling of 195903697 in words is "one hundred ninety-five million, nine hundred three thousand, six hundred ninety-seven".