195832821 has 8 divisors (see below), whose sum is σ = 261202144. Its totient is φ = 130509360.

The previous prime is 195832799. The next prime is 195832831. The reversal of 195832821 is 128238591.

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

It is not a de Polignac number, because 195832821 - 2⁵ = 195832789 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 195832821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195832831) 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, 195 + ... + 19791.

It is an arithmetic number, because the mean of its divisors is an integer number (32650268).

Almost surely, 2^195832821 is an apocalyptic number.

It is an amenable number.

195832821 is a deficient number, since it is larger than the sum of its proper divisors (65369323).

195832821 is a wasteful number, since it uses less digits than its factorization.

195832821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22931.

The product of its digits is 34560, while the sum is 39.

The square root of 195832821 is about 13994.0280477066. The cubic root of 195832821 is about 580.7133721278.

The spelling of 195832821 in words is "one hundred ninety-five million, eight hundred thirty-two thousand, eight hundred twenty-one".