195873816 has 32 divisors (see below), whose sum is σ = 500106240. Its totient is φ = 63901728.

The previous prime is 195873809. The next prime is 195873817. The reversal of 195873816 is 618378591.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195873817) 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, 85696 + ... + 87951.

It is an arithmetic number, because the mean of its divisors is an integer number (15628320).

Almost surely, 2^195873816 is an apocalyptic number.

It is an amenable number.

195873816 is an abundant number, since it is smaller than the sum of its proper divisors (304232424).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

195873816 is a wasteful number, since it uses less digits than its factorization.

195873816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173703 (or 173699 counting only the distinct ones).

The product of its digits is 362880, while the sum is 48.

The square root of 195873816 is about 13995.4927030098. The cubic root of 195873816 is about 580.7538908443.

The spelling of 195873816 in words is "one hundred ninety-five million, eight hundred seventy-three thousand, eight hundred sixteen".