195912893 has 8 divisors (see below), whose sum is σ = 221093280. Its totient is φ = 171960880.

The previous prime is 195912887. The next prime is 195912911. The reversal of 195912893 is 398219591.

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 195912893 - 2¹⁴ = 195896509 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195912833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 306755 + ... + 307392.

It is an arithmetic number, because the mean of its divisors is an integer number (27636660).

Almost surely, 2^195912893 is an apocalyptic number.

It is an amenable number.

195912893 is a deficient number, since it is larger than the sum of its proper divisors (25180387).

195912893 is a wasteful number, since it uses less digits than its factorization.

195912893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 614187.

The product of its digits is 174960, while the sum is 47.

The square root of 195912893 is about 13996.8886899911. Note that the first 3 decimals coincide. The cubic root of 195912893 is about 580.7925085818.

The spelling of 195912893 in words is "one hundred ninety-five million, nine hundred twelve thousand, eight hundred ninety-three".