195804 has 72 divisors (see below), whose sum is σ = 606480. Its totient is φ = 54432.

The previous prime is 195791. The next prime is 195809. The reversal of 195804 is 408591.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195809) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5274 + ... + 5310.

2¹⁹⁵⁸⁰⁴ is an apocalyptic number.

195804 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 195804, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (303240).

195804 is an abundant number, since it is smaller than the sum of its proper divisors (410676).

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

195804 is a wasteful number, since it uses less digits than its factorization.

195804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64 (or 49 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 195804 is about 442.4974576198. The cubic root of 195804 is about 58.0684882587.

It can be divided in two parts, 195 and 804, that added together give a palindrome (999).

The spelling of 195804 in words is "one hundred ninety-five thousand, eight hundred four".